1// Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15// Context.cpp: Implements the es1::Context class, managing all GL state and performing 16// rendering operations. It is the GLES2 specific implementation of EGLContext. 17 18#include "Context.h" 19 20#include "main.h" 21#include "mathutil.h" 22#include "utilities.h" 23#include "ResourceManager.h" 24#include "Buffer.h" 25#include "Framebuffer.h" 26#include "Renderbuffer.h" 27#include "Texture.h" 28#include "VertexDataManager.h" 29#include "IndexDataManager.h" 30#include "libEGL/Display.h" 31#include "common/Surface.hpp" 32#include "Common/Half.hpp" 33 34#include <EGL/eglext.h> 35 36using std::abs; 37 38namespace es1 39{ 40Context::Context(egl::Display *const display, const Context *shareContext, const egl::Config *config) 41 : egl::Context(display), config(config), 42 modelViewStack(MAX_MODELVIEW_STACK_DEPTH), 43 projectionStack(MAX_PROJECTION_STACK_DEPTH), 44 textureStack0(MAX_TEXTURE_STACK_DEPTH), 45 textureStack1(MAX_TEXTURE_STACK_DEPTH) 46{ 47 sw::Context *context = new sw::Context(); 48 device = new es1::Device(context); 49 50 mVertexDataManager = new VertexDataManager(this); 51 mIndexDataManager = new IndexDataManager(); 52 53 setClearColor(0.0f, 0.0f, 0.0f, 0.0f); 54 55 mState.depthClearValue = 1.0f; 56 mState.stencilClearValue = 0; 57 58 mState.cullFaceEnabled = false; 59 mState.cullMode = GL_BACK; 60 mState.frontFace = GL_CCW; 61 mState.depthTestEnabled = false; 62 mState.depthFunc = GL_LESS; 63 mState.blendEnabled = false; 64 mState.sourceBlendRGB = GL_ONE; 65 mState.sourceBlendAlpha = GL_ONE; 66 mState.destBlendRGB = GL_ZERO; 67 mState.destBlendAlpha = GL_ZERO; 68 mState.blendEquationRGB = GL_FUNC_ADD_OES; 69 mState.blendEquationAlpha = GL_FUNC_ADD_OES; 70 mState.stencilTestEnabled = false; 71 mState.stencilFunc = GL_ALWAYS; 72 mState.stencilRef = 0; 73 mState.stencilMask = -1; 74 mState.stencilWritemask = -1; 75 mState.stencilFail = GL_KEEP; 76 mState.stencilPassDepthFail = GL_KEEP; 77 mState.stencilPassDepthPass = GL_KEEP; 78 mState.polygonOffsetFillEnabled = false; 79 mState.polygonOffsetFactor = 0.0f; 80 mState.polygonOffsetUnits = 0.0f; 81 mState.sampleAlphaToCoverageEnabled = false; 82 mState.sampleCoverageEnabled = false; 83 mState.sampleCoverageValue = 1.0f; 84 mState.sampleCoverageInvert = false; 85 mState.scissorTestEnabled = false; 86 mState.ditherEnabled = true; 87 mState.shadeModel = GL_SMOOTH; 88 mState.generateMipmapHint = GL_DONT_CARE; 89 mState.perspectiveCorrectionHint = GL_DONT_CARE; 90 mState.fogHint = GL_DONT_CARE; 91 92 mState.lineWidth = 1.0f; 93 94 mState.viewportX = 0; 95 mState.viewportY = 0; 96 mState.viewportWidth = 0; 97 mState.viewportHeight = 0; 98 mState.zNear = 0.0f; 99 mState.zFar = 1.0f; 100 101 mState.scissorX = 0; 102 mState.scissorY = 0; 103 mState.scissorWidth = 0; 104 mState.scissorHeight = 0; 105 106 mState.colorMaskRed = true; 107 mState.colorMaskGreen = true; 108 mState.colorMaskBlue = true; 109 mState.colorMaskAlpha = true; 110 mState.depthMask = true; 111 112 for(int i = 0; i < MAX_TEXTURE_UNITS; i++) 113 { 114 mState.textureUnit[i].color = {0, 0, 0, 0}; 115 mState.textureUnit[i].environmentMode = GL_MODULATE; 116 mState.textureUnit[i].combineRGB = GL_MODULATE; 117 mState.textureUnit[i].combineAlpha = GL_MODULATE; 118 mState.textureUnit[i].src0RGB = GL_TEXTURE; 119 mState.textureUnit[i].src1RGB = GL_PREVIOUS; 120 mState.textureUnit[i].src2RGB = GL_CONSTANT; 121 mState.textureUnit[i].src0Alpha = GL_TEXTURE; 122 mState.textureUnit[i].src1Alpha = GL_PREVIOUS; 123 mState.textureUnit[i].src2Alpha = GL_CONSTANT; 124 mState.textureUnit[i].operand0RGB = GL_SRC_COLOR; 125 mState.textureUnit[i].operand1RGB = GL_SRC_COLOR; 126 mState.textureUnit[i].operand2RGB = GL_SRC_ALPHA; 127 mState.textureUnit[i].operand0Alpha = GL_SRC_ALPHA; 128 mState.textureUnit[i].operand1Alpha = GL_SRC_ALPHA; 129 mState.textureUnit[i].operand2Alpha = GL_SRC_ALPHA; 130 } 131 132 if(shareContext) 133 { 134 mResourceManager = shareContext->mResourceManager; 135 mResourceManager->addRef(); 136 } 137 else 138 { 139 mResourceManager = new ResourceManager(); 140 } 141 142 // [OpenGL ES 2.0.24] section 3.7 page 83: 143 // In the initial state, TEXTURE_2D and TEXTURE_CUBE_MAP have twodimensional 144 // and cube map texture state vectors respectively associated with them. 145 // In order that access to these initial textures not be lost, they are treated as texture 146 // objects all of whose names are 0. 147 148 mTexture2DZero = new Texture2D(0); 149 mTextureExternalZero = new TextureExternal(0); 150 151 mState.activeSampler = 0; 152 153 for(int type = 0; type < TEXTURE_TYPE_COUNT; type++) 154 { 155 bindTexture((TextureType)type, 0); 156 } 157 158 bindArrayBuffer(0); 159 bindElementArrayBuffer(0); 160 bindFramebuffer(0); 161 bindRenderbuffer(0); 162 163 mState.packAlignment = 4; 164 mState.unpackAlignment = 4; 165 166 mInvalidEnum = false; 167 mInvalidValue = false; 168 mInvalidOperation = false; 169 mOutOfMemory = false; 170 mInvalidFramebufferOperation = false; 171 mMatrixStackOverflow = false; 172 mMatrixStackUnderflow = false; 173 174 lightingEnabled = false; 175 176 for(int i = 0; i < MAX_LIGHTS; i++) 177 { 178 light[i].enabled = false; 179 light[i].ambient = {0.0f, 0.0f, 0.0f, 1.0f}; 180 light[i].diffuse = {0.0f, 0.0f, 0.0f, 1.0f}; 181 light[i].specular = {0.0f, 0.0f, 0.0f, 1.0f}; 182 light[i].position = {0.0f, 0.0f, 1.0f, 0.0f}; 183 light[i].direction = {0.0f, 0.0f, -1.0f}; 184 light[i].attenuation = {1.0f, 0.0f, 0.0f}; 185 light[i].spotExponent = 0.0f; 186 light[i].spotCutoffAngle = 180.0f; 187 } 188 189 light[0].diffuse = {1.0f, 1.0f, 1.0f, 1.0f}; 190 light[0].specular = {1.0f, 1.0f, 1.0f, 1.0f}; 191 192 globalAmbient = {0.2f, 0.2f, 0.2f, 1.0f}; 193 materialAmbient = {0.2f, 0.2f, 0.2f, 1.0f}; 194 materialDiffuse = {0.8f, 0.8f, 0.8f, 1.0f}; 195 materialSpecular = {0.0f, 0.0f, 0.0f, 1.0f}; 196 materialEmission = {0.0f, 0.0f, 0.0f, 1.0f}; 197 materialShininess = 0.0f; 198 lightModelTwoSide = false; 199 200 matrixMode = GL_MODELVIEW; 201 202 for(int i = 0; i < MAX_TEXTURE_UNITS; i++) 203 { 204 texture2Denabled[i] = false; 205 textureExternalEnabled[i] = false; 206 } 207 208 clientTexture = GL_TEXTURE0; 209 210 setVertexAttrib(sw::Color0, 1.0f, 1.0f, 1.0f, 1.0f); 211 212 for(int i = 0; i < MAX_TEXTURE_UNITS; i++) 213 { 214 setVertexAttrib(sw::TexCoord0 + i, 0.0f, 0.0f, 0.0f, 1.0f); 215 } 216 217 setVertexAttrib(sw::Normal, 0.0f, 0.0f, 1.0f, 1.0f); 218 setVertexAttrib(sw::PointSize, 1.0f, 1.0f, 1.0f, 1.0f); 219 220 clipFlags = 0; 221 222 alphaTestEnabled = false; 223 alphaTestFunc = GL_ALWAYS; 224 alphaTestRef = 0; 225 226 fogEnabled = false; 227 fogMode = GL_EXP; 228 fogDensity = 1.0f; 229 fogStart = 0.0f; 230 fogEnd = 1.0f; 231 fogColor = {0, 0, 0, 0}; 232 233 lineSmoothEnabled = false; 234 colorMaterialEnabled = false; 235 normalizeEnabled = false; 236 rescaleNormalEnabled = false; 237 multisampleEnabled = true; 238 sampleAlphaToOneEnabled = false; 239 240 colorLogicOpEnabled = false; 241 logicalOperation = GL_COPY; 242 243 pointSpriteEnabled = false; 244 pointSmoothEnabled = false; 245 pointSizeMin = 0.0f; 246 pointSizeMax = 1.0f; 247 pointDistanceAttenuation = {1.0f, 0.0f, 0.0f}; 248 pointFadeThresholdSize = 1.0f; 249 250 mHasBeenCurrent = false; 251 252 markAllStateDirty(); 253} 254 255Context::~Context() 256{ 257 while(!mFramebufferNameSpace.empty()) 258 { 259 deleteFramebuffer(mFramebufferNameSpace.firstName()); 260 } 261 262 for(int type = 0; type < TEXTURE_TYPE_COUNT; type++) 263 { 264 for(int sampler = 0; sampler < MAX_TEXTURE_UNITS; sampler++) 265 { 266 mState.samplerTexture[type][sampler] = nullptr; 267 } 268 } 269 270 for(int i = 0; i < MAX_VERTEX_ATTRIBS; i++) 271 { 272 mState.vertexAttribute[i].mBoundBuffer = nullptr; 273 } 274 275 mState.arrayBuffer = nullptr; 276 mState.elementArrayBuffer = nullptr; 277 mState.renderbuffer = nullptr; 278 279 mTexture2DZero = nullptr; 280 mTextureExternalZero = nullptr; 281 282 delete mVertexDataManager; 283 delete mIndexDataManager; 284 285 mResourceManager->release(); 286 delete device; 287} 288 289void Context::makeCurrent(gl::Surface *surface) 290{ 291 if(!mHasBeenCurrent) 292 { 293 mState.viewportX = 0; 294 mState.viewportY = 0; 295 mState.viewportWidth = surface ? surface->getWidth() : 0; 296 mState.viewportHeight = surface ? surface->getHeight() : 0; 297 298 mState.scissorX = 0; 299 mState.scissorY = 0; 300 mState.scissorWidth = surface ? surface->getWidth() : 0; 301 mState.scissorHeight = surface ? surface->getHeight() : 0; 302 303 mHasBeenCurrent = true; 304 } 305 306 // Wrap the existing resources into GL objects and assign them to the '0' names 307 egl::Image *defaultRenderTarget = surface ? surface->getRenderTarget() : nullptr; 308 egl::Image *depthStencil = surface ? surface->getDepthStencil() : nullptr; 309 310 Colorbuffer *colorbufferZero = new Colorbuffer(defaultRenderTarget); 311 DepthStencilbuffer *depthStencilbufferZero = new DepthStencilbuffer(depthStencil); 312 Framebuffer *framebufferZero = new DefaultFramebuffer(colorbufferZero, depthStencilbufferZero); 313 314 setFramebufferZero(framebufferZero); 315 316 if(defaultRenderTarget) 317 { 318 defaultRenderTarget->release(); 319 } 320 321 if(depthStencil) 322 { 323 depthStencil->release(); 324 } 325 326 markAllStateDirty(); 327} 328 329EGLint Context::getClientVersion() const 330{ 331 return 1; 332} 333 334EGLint Context::getConfigID() const 335{ 336 return config->mConfigID; 337} 338 339// This function will set all of the state-related dirty flags, so that all state is set during next pre-draw. 340void Context::markAllStateDirty() 341{ 342 mDepthStateDirty = true; 343 mMaskStateDirty = true; 344 mBlendStateDirty = true; 345 mStencilStateDirty = true; 346 mPolygonOffsetStateDirty = true; 347 mSampleStateDirty = true; 348 mDitherStateDirty = true; 349 mFrontFaceDirty = true; 350} 351 352void Context::setClearColor(float red, float green, float blue, float alpha) 353{ 354 mState.colorClearValue.red = red; 355 mState.colorClearValue.green = green; 356 mState.colorClearValue.blue = blue; 357 mState.colorClearValue.alpha = alpha; 358} 359 360void Context::setClearDepth(float depth) 361{ 362 mState.depthClearValue = depth; 363} 364 365void Context::setClearStencil(int stencil) 366{ 367 mState.stencilClearValue = stencil; 368} 369 370void Context::setCullFaceEnabled(bool enabled) 371{ 372 mState.cullFaceEnabled = enabled; 373} 374 375bool Context::isCullFaceEnabled() const 376{ 377 return mState.cullFaceEnabled; 378} 379 380void Context::setCullMode(GLenum mode) 381{ 382 mState.cullMode = mode; 383} 384 385void Context::setFrontFace(GLenum front) 386{ 387 if(mState.frontFace != front) 388 { 389 mState.frontFace = front; 390 mFrontFaceDirty = true; 391 } 392} 393 394void Context::setDepthTestEnabled(bool enabled) 395{ 396 if(mState.depthTestEnabled != enabled) 397 { 398 mState.depthTestEnabled = enabled; 399 mDepthStateDirty = true; 400 } 401} 402 403bool Context::isDepthTestEnabled() const 404{ 405 return mState.depthTestEnabled; 406} 407 408void Context::setDepthFunc(GLenum depthFunc) 409{ 410 if(mState.depthFunc != depthFunc) 411 { 412 mState.depthFunc = depthFunc; 413 mDepthStateDirty = true; 414 } 415} 416 417void Context::setDepthRange(float zNear, float zFar) 418{ 419 mState.zNear = zNear; 420 mState.zFar = zFar; 421} 422 423void Context::setAlphaTestEnabled(bool enabled) 424{ 425 alphaTestEnabled = enabled; 426} 427 428bool Context::isAlphaTestEnabled() const 429{ 430 return alphaTestEnabled; 431} 432 433void Context::setAlphaFunc(GLenum alphaFunc, GLclampf reference) 434{ 435 alphaTestFunc = alphaFunc; 436 alphaTestRef = reference; 437} 438 439void Context::setBlendEnabled(bool enabled) 440{ 441 if(mState.blendEnabled != enabled) 442 { 443 mState.blendEnabled = enabled; 444 mBlendStateDirty = true; 445 } 446} 447 448bool Context::isBlendEnabled() const 449{ 450 return mState.blendEnabled; 451} 452 453void Context::setBlendFactors(GLenum sourceRGB, GLenum destRGB, GLenum sourceAlpha, GLenum destAlpha) 454{ 455 if(mState.sourceBlendRGB != sourceRGB || 456 mState.sourceBlendAlpha != sourceAlpha || 457 mState.destBlendRGB != destRGB || 458 mState.destBlendAlpha != destAlpha) 459 { 460 mState.sourceBlendRGB = sourceRGB; 461 mState.destBlendRGB = destRGB; 462 mState.sourceBlendAlpha = sourceAlpha; 463 mState.destBlendAlpha = destAlpha; 464 mBlendStateDirty = true; 465 } 466} 467 468void Context::setBlendEquation(GLenum rgbEquation, GLenum alphaEquation) 469{ 470 if(mState.blendEquationRGB != rgbEquation || 471 mState.blendEquationAlpha != alphaEquation) 472 { 473 mState.blendEquationRGB = rgbEquation; 474 mState.blendEquationAlpha = alphaEquation; 475 mBlendStateDirty = true; 476 } 477} 478 479void Context::setStencilTestEnabled(bool enabled) 480{ 481 if(mState.stencilTestEnabled != enabled) 482 { 483 mState.stencilTestEnabled = enabled; 484 mStencilStateDirty = true; 485 } 486} 487 488bool Context::isStencilTestEnabled() const 489{ 490 return mState.stencilTestEnabled; 491} 492 493void Context::setStencilParams(GLenum stencilFunc, GLint stencilRef, GLuint stencilMask) 494{ 495 if(mState.stencilFunc != stencilFunc || 496 mState.stencilRef != stencilRef || 497 mState.stencilMask != stencilMask) 498 { 499 mState.stencilFunc = stencilFunc; 500 mState.stencilRef = (stencilRef > 0) ? stencilRef : 0; 501 mState.stencilMask = stencilMask; 502 mStencilStateDirty = true; 503 } 504} 505 506void Context::setStencilWritemask(GLuint stencilWritemask) 507{ 508 if(mState.stencilWritemask != stencilWritemask) 509 { 510 mState.stencilWritemask = stencilWritemask; 511 mStencilStateDirty = true; 512 } 513} 514 515void Context::setStencilOperations(GLenum stencilFail, GLenum stencilPassDepthFail, GLenum stencilPassDepthPass) 516{ 517 if(mState.stencilFail != stencilFail || 518 mState.stencilPassDepthFail != stencilPassDepthFail || 519 mState.stencilPassDepthPass != stencilPassDepthPass) 520 { 521 mState.stencilFail = stencilFail; 522 mState.stencilPassDepthFail = stencilPassDepthFail; 523 mState.stencilPassDepthPass = stencilPassDepthPass; 524 mStencilStateDirty = true; 525 } 526} 527 528void Context::setPolygonOffsetFillEnabled(bool enabled) 529{ 530 if(mState.polygonOffsetFillEnabled != enabled) 531 { 532 mState.polygonOffsetFillEnabled = enabled; 533 mPolygonOffsetStateDirty = true; 534 } 535} 536 537bool Context::isPolygonOffsetFillEnabled() const 538{ 539 return mState.polygonOffsetFillEnabled; 540} 541 542void Context::setPolygonOffsetParams(GLfloat factor, GLfloat units) 543{ 544 if(mState.polygonOffsetFactor != factor || 545 mState.polygonOffsetUnits != units) 546 { 547 mState.polygonOffsetFactor = factor; 548 mState.polygonOffsetUnits = units; 549 mPolygonOffsetStateDirty = true; 550 } 551} 552 553void Context::setSampleAlphaToCoverageEnabled(bool enabled) 554{ 555 if(mState.sampleAlphaToCoverageEnabled != enabled) 556 { 557 mState.sampleAlphaToCoverageEnabled = enabled; 558 mSampleStateDirty = true; 559 } 560} 561 562bool Context::isSampleAlphaToCoverageEnabled() const 563{ 564 return mState.sampleAlphaToCoverageEnabled; 565} 566 567void Context::setSampleCoverageEnabled(bool enabled) 568{ 569 if(mState.sampleCoverageEnabled != enabled) 570 { 571 mState.sampleCoverageEnabled = enabled; 572 mSampleStateDirty = true; 573 } 574} 575 576bool Context::isSampleCoverageEnabled() const 577{ 578 return mState.sampleCoverageEnabled; 579} 580 581void Context::setSampleCoverageParams(GLclampf value, bool invert) 582{ 583 if(mState.sampleCoverageValue != value || 584 mState.sampleCoverageInvert != invert) 585 { 586 mState.sampleCoverageValue = value; 587 mState.sampleCoverageInvert = invert; 588 mSampleStateDirty = true; 589 } 590} 591 592void Context::setScissorTestEnabled(bool enabled) 593{ 594 mState.scissorTestEnabled = enabled; 595} 596 597bool Context::isScissorTestEnabled() const 598{ 599 return mState.scissorTestEnabled; 600} 601 602void Context::setShadeModel(GLenum mode) 603{ 604 mState.shadeModel = mode; 605} 606 607void Context::setDitherEnabled(bool enabled) 608{ 609 if(mState.ditherEnabled != enabled) 610 { 611 mState.ditherEnabled = enabled; 612 mDitherStateDirty = true; 613 } 614} 615 616bool Context::isDitherEnabled() const 617{ 618 return mState.ditherEnabled; 619} 620 621void Context::setLightingEnabled(bool enable) 622{ 623 lightingEnabled = enable; 624} 625 626bool Context::isLightingEnabled() const 627{ 628 return lightingEnabled; 629} 630 631void Context::setLightEnabled(int index, bool enable) 632{ 633 light[index].enabled = enable; 634} 635 636bool Context::isLightEnabled(int index) const 637{ 638 return light[index].enabled; 639} 640 641void Context::setLightAmbient(int index, float r, float g, float b, float a) 642{ 643 light[index].ambient = {r, g, b, a}; 644} 645 646void Context::setLightDiffuse(int index, float r, float g, float b, float a) 647{ 648 light[index].diffuse = {r, g, b, a}; 649} 650 651void Context::setLightSpecular(int index, float r, float g, float b, float a) 652{ 653 light[index].specular = {r, g, b, a}; 654} 655 656void Context::setLightPosition(int index, float x, float y, float z, float w) 657{ 658 sw::float4 v = {x, y, z, w}; 659 660 // Transform from object coordinates to eye coordinates 661 v = modelViewStack.current() * v; 662 663 light[index].position = {v.x, v.y, v.z, v.w}; 664} 665 666void Context::setLightDirection(int index, float x, float y, float z) 667{ 668 // FIXME: Transform by inverse of 3x3 model-view matrix 669 light[index].direction = {x, y, z}; 670} 671 672void Context::setLightAttenuationConstant(int index, float constant) 673{ 674 light[index].attenuation.constant = constant; 675} 676 677void Context::setLightAttenuationLinear(int index, float linear) 678{ 679 light[index].attenuation.linear = linear; 680} 681 682void Context::setLightAttenuationQuadratic(int index, float quadratic) 683{ 684 light[index].attenuation.quadratic = quadratic; 685} 686 687void Context::setSpotLightExponent(int index, float exponent) 688{ 689 light[index].spotExponent = exponent; 690} 691 692void Context::setSpotLightCutoff(int index, float cutoff) 693{ 694 light[index].spotCutoffAngle = cutoff; 695} 696 697void Context::setGlobalAmbient(float red, float green, float blue, float alpha) 698{ 699 globalAmbient.red = red; 700 globalAmbient.green = green; 701 globalAmbient.blue = blue; 702 globalAmbient.alpha = alpha; 703} 704 705void Context::setMaterialAmbient(float red, float green, float blue, float alpha) 706{ 707 materialAmbient.red = red; 708 materialAmbient.green = green; 709 materialAmbient.blue = blue; 710 materialAmbient.alpha = alpha; 711} 712 713void Context::setMaterialDiffuse(float red, float green, float blue, float alpha) 714{ 715 materialDiffuse.red = red; 716 materialDiffuse.green = green; 717 materialDiffuse.blue = blue; 718 materialDiffuse.alpha = alpha; 719} 720 721void Context::setMaterialSpecular(float red, float green, float blue, float alpha) 722{ 723 materialSpecular.red = red; 724 materialSpecular.green = green; 725 materialSpecular.blue = blue; 726 materialSpecular.alpha = alpha; 727} 728 729void Context::setMaterialEmission(float red, float green, float blue, float alpha) 730{ 731 materialEmission.red = red; 732 materialEmission.green = green; 733 materialEmission.blue = blue; 734 materialEmission.alpha = alpha; 735} 736 737void Context::setMaterialShininess(float shininess) 738{ 739 materialShininess = shininess; 740} 741 742void Context::setLightModelTwoSide(bool enable) 743{ 744 lightModelTwoSide = enable; 745} 746 747void Context::setFogEnabled(bool enable) 748{ 749 fogEnabled = enable; 750} 751 752bool Context::isFogEnabled() const 753{ 754 return fogEnabled; 755} 756 757void Context::setFogMode(GLenum mode) 758{ 759 fogMode = mode; 760} 761 762void Context::setFogDensity(float fogDensity) 763{ 764 this->fogDensity = fogDensity; 765} 766 767void Context::setFogStart(float fogStart) 768{ 769 this->fogStart = fogStart; 770} 771 772void Context::setFogEnd(float fogEnd) 773{ 774 this->fogEnd = fogEnd; 775} 776 777void Context::setFogColor(float r, float g, float b, float a) 778{ 779 this->fogColor = {r, g, b, a}; 780} 781 782void Context::setTexture2Denabled(bool enable) 783{ 784 texture2Denabled[mState.activeSampler] = enable; 785} 786 787bool Context::isTexture2Denabled() const 788{ 789 return texture2Denabled[mState.activeSampler]; 790} 791 792void Context::setTextureExternalEnabled(bool enable) 793{ 794 textureExternalEnabled[mState.activeSampler] = enable; 795} 796 797bool Context::isTextureExternalEnabled() const 798{ 799 return textureExternalEnabled[mState.activeSampler]; 800} 801 802void Context::setLineWidth(GLfloat width) 803{ 804 mState.lineWidth = width; 805 device->setLineWidth(clamp(width, ALIASED_LINE_WIDTH_RANGE_MIN, ALIASED_LINE_WIDTH_RANGE_MAX)); 806} 807 808void Context::setGenerateMipmapHint(GLenum hint) 809{ 810 mState.generateMipmapHint = hint; 811} 812 813void Context::setPerspectiveCorrectionHint(GLenum hint) 814{ 815 mState.perspectiveCorrectionHint = hint; 816} 817 818void Context::setFogHint(GLenum hint) 819{ 820 mState.fogHint = hint; 821} 822 823void Context::setViewportParams(GLint x, GLint y, GLsizei width, GLsizei height) 824{ 825 mState.viewportX = x; 826 mState.viewportY = y; 827 mState.viewportWidth = width; 828 mState.viewportHeight = height; 829} 830 831void Context::setScissorParams(GLint x, GLint y, GLsizei width, GLsizei height) 832{ 833 mState.scissorX = x; 834 mState.scissorY = y; 835 mState.scissorWidth = width; 836 mState.scissorHeight = height; 837} 838 839void Context::setColorMask(bool red, bool green, bool blue, bool alpha) 840{ 841 if(mState.colorMaskRed != red || mState.colorMaskGreen != green || 842 mState.colorMaskBlue != blue || mState.colorMaskAlpha != alpha) 843 { 844 mState.colorMaskRed = red; 845 mState.colorMaskGreen = green; 846 mState.colorMaskBlue = blue; 847 mState.colorMaskAlpha = alpha; 848 mMaskStateDirty = true; 849 } 850} 851 852void Context::setDepthMask(bool mask) 853{ 854 if(mState.depthMask != mask) 855 { 856 mState.depthMask = mask; 857 mMaskStateDirty = true; 858 } 859} 860 861void Context::setActiveSampler(unsigned int active) 862{ 863 mState.activeSampler = active; 864} 865 866GLuint Context::getFramebufferName() const 867{ 868 return mState.framebuffer; 869} 870 871GLuint Context::getRenderbufferName() const 872{ 873 return mState.renderbuffer.name(); 874} 875 876GLuint Context::getArrayBufferName() const 877{ 878 return mState.arrayBuffer.name(); 879} 880 881void Context::setVertexAttribArrayEnabled(unsigned int attribNum, bool enabled) 882{ 883 mState.vertexAttribute[attribNum].mArrayEnabled = enabled; 884} 885 886const VertexAttribute &Context::getVertexAttribState(unsigned int attribNum) 887{ 888 return mState.vertexAttribute[attribNum]; 889} 890 891void Context::setVertexAttribState(unsigned int attribNum, Buffer *boundBuffer, GLint size, GLenum type, bool normalized, 892 GLsizei stride, const void *pointer) 893{ 894 mState.vertexAttribute[attribNum].mBoundBuffer = boundBuffer; 895 mState.vertexAttribute[attribNum].mSize = size; 896 mState.vertexAttribute[attribNum].mType = type; 897 mState.vertexAttribute[attribNum].mNormalized = normalized; 898 mState.vertexAttribute[attribNum].mStride = stride; 899 mState.vertexAttribute[attribNum].mPointer = pointer; 900} 901 902const void *Context::getVertexAttribPointer(unsigned int attribNum) const 903{ 904 return mState.vertexAttribute[attribNum].mPointer; 905} 906 907const VertexAttributeArray &Context::getVertexAttributes() 908{ 909 return mState.vertexAttribute; 910} 911 912void Context::setPackAlignment(GLint alignment) 913{ 914 mState.packAlignment = alignment; 915} 916 917GLint Context::getPackAlignment() const 918{ 919 return mState.packAlignment; 920} 921 922void Context::setUnpackAlignment(GLint alignment) 923{ 924 mState.unpackAlignment = alignment; 925} 926 927GLint Context::getUnpackAlignment() const 928{ 929 return mState.unpackAlignment; 930} 931 932GLuint Context::createBuffer() 933{ 934 return mResourceManager->createBuffer(); 935} 936 937GLuint Context::createTexture() 938{ 939 return mResourceManager->createTexture(); 940} 941 942GLuint Context::createRenderbuffer() 943{ 944 return mResourceManager->createRenderbuffer(); 945} 946 947// Returns an unused framebuffer name 948GLuint Context::createFramebuffer() 949{ 950 return mFramebufferNameSpace.allocate(); 951} 952 953void Context::deleteBuffer(GLuint buffer) 954{ 955 detachBuffer(buffer); 956 957 mResourceManager->deleteBuffer(buffer); 958} 959 960void Context::deleteTexture(GLuint texture) 961{ 962 detachTexture(texture); 963 964 mResourceManager->deleteTexture(texture); 965} 966 967void Context::deleteRenderbuffer(GLuint renderbuffer) 968{ 969 detachRenderbuffer(renderbuffer); 970 971 mResourceManager->deleteRenderbuffer(renderbuffer); 972} 973 974void Context::deleteFramebuffer(GLuint framebuffer) 975{ 976 detachFramebuffer(framebuffer); 977 978 Framebuffer *framebufferObject = mFramebufferNameSpace.remove(framebuffer); 979 980 if(framebufferObject) 981 { 982 delete framebufferObject; 983 } 984} 985 986Buffer *Context::getBuffer(GLuint handle) 987{ 988 return mResourceManager->getBuffer(handle); 989} 990 991Texture *Context::getTexture(GLuint handle) 992{ 993 return mResourceManager->getTexture(handle); 994} 995 996Renderbuffer *Context::getRenderbuffer(GLuint handle) 997{ 998 return mResourceManager->getRenderbuffer(handle); 999} 1000 1001Framebuffer *Context::getFramebuffer() 1002{ 1003 return getFramebuffer(mState.framebuffer); 1004} 1005 1006void Context::bindArrayBuffer(unsigned int buffer) 1007{ 1008 mResourceManager->checkBufferAllocation(buffer); 1009 1010 mState.arrayBuffer = getBuffer(buffer); 1011} 1012 1013void Context::bindElementArrayBuffer(unsigned int buffer) 1014{ 1015 mResourceManager->checkBufferAllocation(buffer); 1016 1017 mState.elementArrayBuffer = getBuffer(buffer); 1018} 1019 1020void Context::bindTexture(TextureType type, GLuint texture) 1021{ 1022 mResourceManager->checkTextureAllocation(texture, type); 1023 1024 mState.samplerTexture[type][mState.activeSampler] = getTexture(texture); 1025} 1026 1027void Context::bindFramebuffer(GLuint framebuffer) 1028{ 1029 if(!getFramebuffer(framebuffer)) 1030 { 1031 mFramebufferNameSpace.insert(framebuffer, new Framebuffer()); 1032 } 1033 1034 mState.framebuffer = framebuffer; 1035} 1036 1037void Context::bindRenderbuffer(GLuint renderbuffer) 1038{ 1039 mResourceManager->checkRenderbufferAllocation(renderbuffer); 1040 1041 mState.renderbuffer = getRenderbuffer(renderbuffer); 1042} 1043 1044void Context::setFramebufferZero(Framebuffer *buffer) 1045{ 1046 delete mFramebufferNameSpace.remove(0); 1047 mFramebufferNameSpace.insert(0, buffer); 1048} 1049 1050void Context::setRenderbufferStorage(RenderbufferStorage *renderbuffer) 1051{ 1052 Renderbuffer *renderbufferObject = mState.renderbuffer; 1053 renderbufferObject->setStorage(renderbuffer); 1054} 1055 1056Framebuffer *Context::getFramebuffer(unsigned int handle) 1057{ 1058 return mFramebufferNameSpace.find(handle); 1059} 1060 1061Buffer *Context::getArrayBuffer() 1062{ 1063 return mState.arrayBuffer; 1064} 1065 1066Buffer *Context::getElementArrayBuffer() 1067{ 1068 return mState.elementArrayBuffer; 1069} 1070 1071Texture2D *Context::getTexture2D() 1072{ 1073 return static_cast<Texture2D*>(getSamplerTexture(mState.activeSampler, TEXTURE_2D)); 1074} 1075 1076TextureExternal *Context::getTextureExternal() 1077{ 1078 return static_cast<TextureExternal*>(getSamplerTexture(mState.activeSampler, TEXTURE_EXTERNAL)); 1079} 1080 1081Texture *Context::getSamplerTexture(unsigned int sampler, TextureType type) 1082{ 1083 GLuint texid = mState.samplerTexture[type][sampler].name(); 1084 1085 if(texid == 0) // Special case: 0 refers to different initial textures based on the target 1086 { 1087 switch(type) 1088 { 1089 case TEXTURE_2D: return mTexture2DZero; 1090 case TEXTURE_EXTERNAL: return mTextureExternalZero; 1091 default: UNREACHABLE(type); 1092 } 1093 } 1094 1095 return mState.samplerTexture[type][sampler]; 1096} 1097 1098bool Context::getBooleanv(GLenum pname, GLboolean *params) 1099{ 1100 switch(pname) 1101 { 1102 case GL_SAMPLE_COVERAGE_INVERT: *params = mState.sampleCoverageInvert; break; 1103 case GL_DEPTH_WRITEMASK: *params = mState.depthMask; break; 1104 case GL_COLOR_WRITEMASK: 1105 params[0] = mState.colorMaskRed; 1106 params[1] = mState.colorMaskGreen; 1107 params[2] = mState.colorMaskBlue; 1108 params[3] = mState.colorMaskAlpha; 1109 break; 1110 case GL_CULL_FACE: *params = mState.cullFaceEnabled; break; 1111 case GL_POLYGON_OFFSET_FILL: *params = mState.polygonOffsetFillEnabled; break; 1112 case GL_SAMPLE_ALPHA_TO_COVERAGE: *params = mState.sampleAlphaToCoverageEnabled; break; 1113 case GL_SAMPLE_COVERAGE: *params = mState.sampleCoverageEnabled; break; 1114 case GL_SCISSOR_TEST: *params = mState.scissorTestEnabled; break; 1115 case GL_STENCIL_TEST: *params = mState.stencilTestEnabled; break; 1116 case GL_DEPTH_TEST: *params = mState.depthTestEnabled; break; 1117 case GL_BLEND: *params = mState.blendEnabled; break; 1118 case GL_DITHER: *params = mState.ditherEnabled; break; 1119 case GL_LIGHT_MODEL_TWO_SIDE: *params = lightModelTwoSide; break; 1120 default: 1121 return false; 1122 } 1123 1124 return true; 1125} 1126 1127bool Context::getFloatv(GLenum pname, GLfloat *params) 1128{ 1129 // Please note: DEPTH_CLEAR_VALUE is included in our internal getFloatv implementation 1130 // because it is stored as a float, despite the fact that the GL ES 2.0 spec names 1131 // GetIntegerv as its native query function. As it would require conversion in any 1132 // case, this should make no difference to the calling application. 1133 switch(pname) 1134 { 1135 case GL_LINE_WIDTH: *params = mState.lineWidth; break; 1136 case GL_SAMPLE_COVERAGE_VALUE: *params = mState.sampleCoverageValue; break; 1137 case GL_DEPTH_CLEAR_VALUE: *params = mState.depthClearValue; break; 1138 case GL_POLYGON_OFFSET_FACTOR: *params = mState.polygonOffsetFactor; break; 1139 case GL_POLYGON_OFFSET_UNITS: *params = mState.polygonOffsetUnits; break; 1140 case GL_ALIASED_LINE_WIDTH_RANGE: 1141 params[0] = ALIASED_LINE_WIDTH_RANGE_MIN; 1142 params[1] = ALIASED_LINE_WIDTH_RANGE_MAX; 1143 break; 1144 case GL_ALIASED_POINT_SIZE_RANGE: 1145 params[0] = ALIASED_POINT_SIZE_RANGE_MIN; 1146 params[1] = ALIASED_POINT_SIZE_RANGE_MAX; 1147 break; 1148 case GL_SMOOTH_LINE_WIDTH_RANGE: 1149 params[0] = SMOOTH_LINE_WIDTH_RANGE_MIN; 1150 params[1] = SMOOTH_LINE_WIDTH_RANGE_MAX; 1151 break; 1152 case GL_SMOOTH_POINT_SIZE_RANGE: 1153 params[0] = SMOOTH_POINT_SIZE_RANGE_MIN; 1154 params[1] = SMOOTH_POINT_SIZE_RANGE_MAX; 1155 break; 1156 case GL_DEPTH_RANGE: 1157 params[0] = mState.zNear; 1158 params[1] = mState.zFar; 1159 break; 1160 case GL_COLOR_CLEAR_VALUE: 1161 params[0] = mState.colorClearValue.red; 1162 params[1] = mState.colorClearValue.green; 1163 params[2] = mState.colorClearValue.blue; 1164 params[3] = mState.colorClearValue.alpha; 1165 break; 1166 case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: 1167 *params = MAX_TEXTURE_MAX_ANISOTROPY; 1168 break; 1169 case GL_MODELVIEW_MATRIX: 1170 for(int i = 0; i < 16; i++) 1171 { 1172 params[i] = modelViewStack.current()[i % 4][i / 4]; 1173 } 1174 break; 1175 case GL_PROJECTION_MATRIX: 1176 for(int i = 0; i < 16; i++) 1177 { 1178 params[i] = projectionStack.current()[i % 4][i / 4]; 1179 } 1180 break; 1181 case GL_CURRENT_COLOR: 1182 for(int i = 0; i < 4; i++) 1183 { 1184 params[i] = mState.vertexAttribute[sw::Color0].mCurrentValue[i]; 1185 } 1186 break; 1187 case GL_CURRENT_NORMAL: 1188 for(int i = 0; i < 3; i++) 1189 { 1190 params[i] = mState.vertexAttribute[sw::Normal].mCurrentValue[i]; 1191 } 1192 break; 1193 case GL_CURRENT_TEXTURE_COORDS: 1194 for(int i = 0; i < 4; i++) 1195 { 1196 params[i] = mState.vertexAttribute[sw::TexCoord0].mCurrentValue[i]; 1197 } 1198 break; 1199 default: 1200 return false; 1201 } 1202 1203 return true; 1204} 1205 1206bool Context::getIntegerv(GLenum pname, GLint *params) 1207{ 1208 // Please note: DEPTH_CLEAR_VALUE is not included in our internal getIntegerv implementation 1209 // because it is stored as a float, despite the fact that the GL ES 2.0 spec names 1210 // GetIntegerv as its native query function. As it would require conversion in any 1211 // case, this should make no difference to the calling application. You may find it in 1212 // Context::getFloatv. 1213 switch(pname) 1214 { 1215 case GL_ARRAY_BUFFER_BINDING: *params = mState.arrayBuffer.name(); break; 1216 case GL_ELEMENT_ARRAY_BUFFER_BINDING: *params = mState.elementArrayBuffer.name(); break; 1217 case GL_FRAMEBUFFER_BINDING_OES: *params = mState.framebuffer; break; 1218 case GL_RENDERBUFFER_BINDING_OES: *params = mState.renderbuffer.name(); break; 1219 case GL_PACK_ALIGNMENT: *params = mState.packAlignment; break; 1220 case GL_UNPACK_ALIGNMENT: *params = mState.unpackAlignment; break; 1221 case GL_GENERATE_MIPMAP_HINT: *params = mState.generateMipmapHint; break; 1222 case GL_PERSPECTIVE_CORRECTION_HINT: *params = mState.perspectiveCorrectionHint; break; 1223 case GL_ACTIVE_TEXTURE: *params = (mState.activeSampler + GL_TEXTURE0); break; 1224 case GL_STENCIL_FUNC: *params = mState.stencilFunc; break; 1225 case GL_STENCIL_REF: *params = mState.stencilRef; break; 1226 case GL_STENCIL_VALUE_MASK: *params = mState.stencilMask; break; 1227 case GL_STENCIL_FAIL: *params = mState.stencilFail; break; 1228 case GL_STENCIL_PASS_DEPTH_FAIL: *params = mState.stencilPassDepthFail; break; 1229 case GL_STENCIL_PASS_DEPTH_PASS: *params = mState.stencilPassDepthPass; break; 1230 case GL_DEPTH_FUNC: *params = mState.depthFunc; break; 1231 case GL_BLEND_SRC_RGB_OES: *params = mState.sourceBlendRGB; break; 1232 case GL_BLEND_SRC_ALPHA_OES: *params = mState.sourceBlendAlpha; break; 1233 case GL_BLEND_DST_RGB_OES: *params = mState.destBlendRGB; break; 1234 case GL_BLEND_DST_ALPHA_OES: *params = mState.destBlendAlpha; break; 1235 case GL_BLEND_EQUATION_RGB_OES: *params = mState.blendEquationRGB; break; 1236 case GL_BLEND_EQUATION_ALPHA_OES: *params = mState.blendEquationAlpha; break; 1237 case GL_STENCIL_WRITEMASK: *params = mState.stencilWritemask; break; 1238 case GL_STENCIL_CLEAR_VALUE: *params = mState.stencilClearValue; break; 1239 case GL_SUBPIXEL_BITS: *params = 4; break; 1240 case GL_MAX_TEXTURE_SIZE: *params = IMPLEMENTATION_MAX_TEXTURE_SIZE; break; 1241 case GL_NUM_COMPRESSED_TEXTURE_FORMATS: *params = NUM_COMPRESSED_TEXTURE_FORMATS; break; 1242 case GL_SAMPLE_BUFFERS: 1243 case GL_SAMPLES: 1244 { 1245 Framebuffer *framebuffer = getFramebuffer(); 1246 int width, height, samples; 1247 1248 if(framebuffer && (framebuffer->completeness(width, height, samples) == GL_FRAMEBUFFER_COMPLETE_OES)) 1249 { 1250 switch(pname) 1251 { 1252 case GL_SAMPLE_BUFFERS: 1253 if(samples > 1) 1254 { 1255 *params = 1; 1256 } 1257 else 1258 { 1259 *params = 0; 1260 } 1261 break; 1262 case GL_SAMPLES: 1263 *params = samples; 1264 break; 1265 } 1266 } 1267 else 1268 { 1269 *params = 0; 1270 } 1271 } 1272 break; 1273 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES: 1274 { 1275 Framebuffer *framebuffer = getFramebuffer(); 1276 if(framebuffer) 1277 { 1278 *params = framebuffer->getImplementationColorReadType(); 1279 } 1280 else 1281 { 1282 return error(GL_INVALID_OPERATION, true); 1283 } 1284 } 1285 break; 1286 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES: 1287 { 1288 Framebuffer *framebuffer = getFramebuffer(); 1289 if(framebuffer) 1290 { 1291 *params = framebuffer->getImplementationColorReadFormat(); 1292 } 1293 else 1294 { 1295 return error(GL_INVALID_OPERATION, true); 1296 } 1297 } 1298 break; 1299 case GL_MAX_VIEWPORT_DIMS: 1300 { 1301 int maxDimension = IMPLEMENTATION_MAX_RENDERBUFFER_SIZE; 1302 params[0] = maxDimension; 1303 params[1] = maxDimension; 1304 } 1305 break; 1306 case GL_COMPRESSED_TEXTURE_FORMATS: 1307 { 1308 for(int i = 0; i < NUM_COMPRESSED_TEXTURE_FORMATS; i++) 1309 { 1310 params[i] = compressedTextureFormats[i]; 1311 } 1312 } 1313 break; 1314 case GL_VIEWPORT: 1315 params[0] = mState.viewportX; 1316 params[1] = mState.viewportY; 1317 params[2] = mState.viewportWidth; 1318 params[3] = mState.viewportHeight; 1319 break; 1320 case GL_SCISSOR_BOX: 1321 params[0] = mState.scissorX; 1322 params[1] = mState.scissorY; 1323 params[2] = mState.scissorWidth; 1324 params[3] = mState.scissorHeight; 1325 break; 1326 case GL_CULL_FACE_MODE: *params = mState.cullMode; break; 1327 case GL_FRONT_FACE: *params = mState.frontFace; break; 1328 case GL_RED_BITS: 1329 case GL_GREEN_BITS: 1330 case GL_BLUE_BITS: 1331 case GL_ALPHA_BITS: 1332 { 1333 Framebuffer *framebuffer = getFramebuffer(); 1334 Renderbuffer *colorbuffer = framebuffer ? framebuffer->getColorbuffer() : nullptr; 1335 1336 if(colorbuffer) 1337 { 1338 switch(pname) 1339 { 1340 case GL_RED_BITS: *params = colorbuffer->getRedSize(); break; 1341 case GL_GREEN_BITS: *params = colorbuffer->getGreenSize(); break; 1342 case GL_BLUE_BITS: *params = colorbuffer->getBlueSize(); break; 1343 case GL_ALPHA_BITS: *params = colorbuffer->getAlphaSize(); break; 1344 } 1345 } 1346 else 1347 { 1348 *params = 0; 1349 } 1350 } 1351 break; 1352 case GL_DEPTH_BITS: 1353 { 1354 Framebuffer *framebuffer = getFramebuffer(); 1355 Renderbuffer *depthbuffer = framebuffer ? framebuffer->getDepthbuffer() : nullptr; 1356 1357 if(depthbuffer) 1358 { 1359 *params = depthbuffer->getDepthSize(); 1360 } 1361 else 1362 { 1363 *params = 0; 1364 } 1365 } 1366 break; 1367 case GL_STENCIL_BITS: 1368 { 1369 Framebuffer *framebuffer = getFramebuffer(); 1370 Renderbuffer *stencilbuffer = framebuffer ? framebuffer->getStencilbuffer() : nullptr; 1371 1372 if(stencilbuffer) 1373 { 1374 *params = stencilbuffer->getStencilSize(); 1375 } 1376 else 1377 { 1378 *params = 0; 1379 } 1380 } 1381 break; 1382 case GL_TEXTURE_BINDING_2D: *params = mState.samplerTexture[TEXTURE_2D][mState.activeSampler].name(); break; 1383 case GL_TEXTURE_BINDING_EXTERNAL_OES: *params = mState.samplerTexture[TEXTURE_EXTERNAL][mState.activeSampler].name(); break; 1384 case GL_MAX_LIGHTS: *params = MAX_LIGHTS; break; 1385 case GL_MAX_MODELVIEW_STACK_DEPTH: *params = MAX_MODELVIEW_STACK_DEPTH; break; 1386 case GL_MAX_PROJECTION_STACK_DEPTH: *params = MAX_PROJECTION_STACK_DEPTH; break; 1387 case GL_MAX_TEXTURE_STACK_DEPTH: *params = MAX_TEXTURE_STACK_DEPTH; break; 1388 case GL_MAX_TEXTURE_UNITS: *params = MAX_TEXTURE_UNITS; break; 1389 case GL_MAX_CLIP_PLANES: *params = MAX_CLIP_PLANES; break; 1390 case GL_POINT_SIZE_ARRAY_TYPE_OES: *params = mState.vertexAttribute[sw::PointSize].mType; break; 1391 case GL_POINT_SIZE_ARRAY_STRIDE_OES: *params = mState.vertexAttribute[sw::PointSize].mStride; break; 1392 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES: *params = mState.vertexAttribute[sw::PointSize].mBoundBuffer.name(); break; 1393 case GL_VERTEX_ARRAY_SIZE: *params = mState.vertexAttribute[sw::Position].mSize; break; 1394 case GL_VERTEX_ARRAY_TYPE: *params = mState.vertexAttribute[sw::Position].mType; break; 1395 case GL_VERTEX_ARRAY_STRIDE: *params = mState.vertexAttribute[sw::Position].mStride; break; 1396 case GL_VERTEX_ARRAY_BUFFER_BINDING: *params = mState.vertexAttribute[sw::Position].mBoundBuffer.name(); break; 1397 case GL_NORMAL_ARRAY_TYPE: *params = mState.vertexAttribute[sw::Normal].mType; break; 1398 case GL_NORMAL_ARRAY_STRIDE: *params = mState.vertexAttribute[sw::Normal].mStride; break; 1399 case GL_NORMAL_ARRAY_BUFFER_BINDING: *params = mState.vertexAttribute[sw::Normal].mBoundBuffer.name(); break; 1400 case GL_COLOR_ARRAY_SIZE: *params = mState.vertexAttribute[sw::Color0].mSize; break; 1401 case GL_COLOR_ARRAY_TYPE: *params = mState.vertexAttribute[sw::Color0].mType; break; 1402 case GL_COLOR_ARRAY_STRIDE: *params = mState.vertexAttribute[sw::Color0].mStride; break; 1403 case GL_COLOR_ARRAY_BUFFER_BINDING: *params = mState.vertexAttribute[sw::Color0].mBoundBuffer.name(); break; 1404 case GL_TEXTURE_COORD_ARRAY_SIZE: *params = mState.vertexAttribute[sw::TexCoord0 + mState.activeSampler].mSize; break; 1405 case GL_TEXTURE_COORD_ARRAY_TYPE: *params = mState.vertexAttribute[sw::TexCoord0 + mState.activeSampler].mType; break; 1406 case GL_TEXTURE_COORD_ARRAY_STRIDE: *params = mState.vertexAttribute[sw::TexCoord0 + mState.activeSampler].mStride; break; 1407 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING: *params = mState.vertexAttribute[sw::TexCoord0 + mState.activeSampler].mBoundBuffer.name(); break; 1408 default: 1409 return false; 1410 } 1411 1412 return true; 1413} 1414 1415bool Context::getPointerv(GLenum pname, const GLvoid **params) 1416{ 1417 switch(pname) 1418 { 1419 case GL_VERTEX_ARRAY_POINTER: *params = mState.vertexAttribute[sw::Position].mPointer; break; 1420 case GL_NORMAL_ARRAY_POINTER: *params = mState.vertexAttribute[sw::Normal].mPointer; break; 1421 case GL_COLOR_ARRAY_POINTER: *params = mState.vertexAttribute[sw::Color0].mPointer; break; 1422 case GL_POINT_SIZE_ARRAY_POINTER_OES: *params = mState.vertexAttribute[sw::PointSize].mPointer; break; 1423 case GL_TEXTURE_COORD_ARRAY_POINTER: *params = mState.vertexAttribute[sw::TexCoord0 + mState.activeSampler].mPointer; break; 1424 default: 1425 return false; 1426 } 1427 1428 return true; 1429} 1430 1431int Context::getQueryParameterNum(GLenum pname) 1432{ 1433 // Please note: the query type returned for DEPTH_CLEAR_VALUE in this implementation 1434 // is FLOAT rather than INT, as would be suggested by the GL ES 2.0 spec. This is due 1435 // to the fact that it is stored internally as a float, and so would require conversion 1436 // if returned from Context::getIntegerv. Since this conversion is already implemented 1437 // in the case that one calls glGetIntegerv to retrieve a float-typed state variable, we 1438 // place DEPTH_CLEAR_VALUE with the floats. This should make no difference to the calling 1439 // application. 1440 switch(pname) 1441 { 1442 case GL_COMPRESSED_TEXTURE_FORMATS: 1443 return NUM_COMPRESSED_TEXTURE_FORMATS; 1444 case GL_NUM_COMPRESSED_TEXTURE_FORMATS: 1445 case GL_ARRAY_BUFFER_BINDING: 1446 case GL_FRAMEBUFFER_BINDING_OES: 1447 case GL_RENDERBUFFER_BINDING_OES: 1448 case GL_PACK_ALIGNMENT: 1449 case GL_UNPACK_ALIGNMENT: 1450 case GL_GENERATE_MIPMAP_HINT: 1451 case GL_RED_BITS: 1452 case GL_GREEN_BITS: 1453 case GL_BLUE_BITS: 1454 case GL_ALPHA_BITS: 1455 case GL_DEPTH_BITS: 1456 case GL_STENCIL_BITS: 1457 case GL_ELEMENT_ARRAY_BUFFER_BINDING: 1458 case GL_CULL_FACE_MODE: 1459 case GL_FRONT_FACE: 1460 case GL_ACTIVE_TEXTURE: 1461 case GL_STENCIL_FUNC: 1462 case GL_STENCIL_VALUE_MASK: 1463 case GL_STENCIL_REF: 1464 case GL_STENCIL_FAIL: 1465 case GL_STENCIL_PASS_DEPTH_FAIL: 1466 case GL_STENCIL_PASS_DEPTH_PASS: 1467 case GL_DEPTH_FUNC: 1468 case GL_BLEND_SRC_RGB_OES: 1469 case GL_BLEND_SRC_ALPHA_OES: 1470 case GL_BLEND_DST_RGB_OES: 1471 case GL_BLEND_DST_ALPHA_OES: 1472 case GL_BLEND_EQUATION_RGB_OES: 1473 case GL_BLEND_EQUATION_ALPHA_OES: 1474 case GL_STENCIL_WRITEMASK: 1475 case GL_STENCIL_CLEAR_VALUE: 1476 case GL_SUBPIXEL_BITS: 1477 case GL_MAX_TEXTURE_SIZE: 1478 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_OES: 1479 case GL_SAMPLE_BUFFERS: 1480 case GL_SAMPLES: 1481 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES: 1482 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES: 1483 case GL_TEXTURE_BINDING_2D: 1484 case GL_TEXTURE_BINDING_CUBE_MAP_OES: 1485 case GL_TEXTURE_BINDING_EXTERNAL_OES: 1486 return 1; 1487 case GL_MAX_VIEWPORT_DIMS: 1488 return 2; 1489 case GL_VIEWPORT: 1490 case GL_SCISSOR_BOX: 1491 return 4; 1492 case GL_SAMPLE_COVERAGE_INVERT: 1493 case GL_DEPTH_WRITEMASK: 1494 case GL_CULL_FACE: // CULL_FACE through DITHER are natural to IsEnabled, 1495 case GL_POLYGON_OFFSET_FILL: // but can be retrieved through the Get{Type}v queries. 1496 case GL_SAMPLE_ALPHA_TO_COVERAGE: // For this purpose, they are treated here as bool-natural 1497 case GL_SAMPLE_COVERAGE: 1498 case GL_SCISSOR_TEST: 1499 case GL_STENCIL_TEST: 1500 case GL_DEPTH_TEST: 1501 case GL_BLEND: 1502 case GL_DITHER: 1503 return 1; 1504 case GL_COLOR_WRITEMASK: 1505 return 4; 1506 case GL_POLYGON_OFFSET_FACTOR: 1507 case GL_POLYGON_OFFSET_UNITS: 1508 case GL_SAMPLE_COVERAGE_VALUE: 1509 case GL_DEPTH_CLEAR_VALUE: 1510 case GL_LINE_WIDTH: 1511 return 1; 1512 case GL_ALIASED_LINE_WIDTH_RANGE: 1513 case GL_ALIASED_POINT_SIZE_RANGE: 1514 case GL_DEPTH_RANGE: 1515 return 2; 1516 case GL_COLOR_CLEAR_VALUE: 1517 return 4; 1518 case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: 1519 case GL_MAX_LIGHTS: 1520 case GL_MAX_MODELVIEW_STACK_DEPTH: 1521 case GL_MAX_PROJECTION_STACK_DEPTH: 1522 case GL_MAX_TEXTURE_STACK_DEPTH: 1523 case GL_MAX_TEXTURE_UNITS: 1524 case GL_MAX_CLIP_PLANES: 1525 case GL_POINT_SIZE_ARRAY_TYPE_OES: 1526 case GL_POINT_SIZE_ARRAY_STRIDE_OES: 1527 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES: 1528 return 1; 1529 case GL_CURRENT_COLOR: 1530 return 4; 1531 case GL_CURRENT_NORMAL: 1532 return 3; 1533 case GL_CURRENT_TEXTURE_COORDS: 1534 return 4; 1535 case GL_POINT_SIZE: 1536 case GL_POINT_SIZE_MIN: 1537 case GL_POINT_SIZE_MAX: 1538 case GL_POINT_FADE_THRESHOLD_SIZE: 1539 return 1; 1540 case GL_POINT_DISTANCE_ATTENUATION: 1541 return 3; 1542 case GL_SMOOTH_POINT_SIZE_RANGE: 1543 case GL_SMOOTH_LINE_WIDTH_RANGE: 1544 return 2; 1545 case GL_SHADE_MODEL: 1546 case GL_MATRIX_MODE: 1547 case GL_MODELVIEW_STACK_DEPTH: 1548 case GL_PROJECTION_STACK_DEPTH: 1549 case GL_TEXTURE_STACK_DEPTH: 1550 return 1; 1551 case GL_MODELVIEW_MATRIX: 1552 case GL_PROJECTION_MATRIX: 1553 case GL_TEXTURE_MATRIX: 1554 return 16; 1555 case GL_ALPHA_TEST_FUNC: 1556 case GL_ALPHA_TEST_REF: 1557 case GL_BLEND_DST: 1558 case GL_BLEND_SRC: 1559 case GL_LOGIC_OP_MODE: 1560 case GL_VERTEX_ARRAY_SIZE: 1561 case GL_VERTEX_ARRAY_TYPE: 1562 case GL_VERTEX_ARRAY_STRIDE: 1563 case GL_NORMAL_ARRAY_TYPE: 1564 case GL_NORMAL_ARRAY_STRIDE: 1565 case GL_COLOR_ARRAY_SIZE: 1566 case GL_COLOR_ARRAY_TYPE: 1567 case GL_COLOR_ARRAY_STRIDE: 1568 case GL_TEXTURE_COORD_ARRAY_SIZE: 1569 case GL_TEXTURE_COORD_ARRAY_TYPE: 1570 case GL_TEXTURE_COORD_ARRAY_STRIDE: 1571 case GL_VERTEX_ARRAY_POINTER: 1572 case GL_NORMAL_ARRAY_POINTER: 1573 case GL_COLOR_ARRAY_POINTER: 1574 case GL_TEXTURE_COORD_ARRAY_POINTER: 1575 case GL_LIGHT_MODEL_TWO_SIDE: 1576 return 1; 1577 default: 1578 UNREACHABLE(pname); 1579 } 1580 1581 return -1; 1582} 1583 1584bool Context::isQueryParameterInt(GLenum pname) 1585{ 1586 // Please note: the query type returned for DEPTH_CLEAR_VALUE in this implementation 1587 // is FLOAT rather than INT, as would be suggested by the GL ES 2.0 spec. This is due 1588 // to the fact that it is stored internally as a float, and so would require conversion 1589 // if returned from Context::getIntegerv. Since this conversion is already implemented 1590 // in the case that one calls glGetIntegerv to retrieve a float-typed state variable, we 1591 // place DEPTH_CLEAR_VALUE with the floats. This should make no difference to the calling 1592 // application. 1593 switch(pname) 1594 { 1595 case GL_COMPRESSED_TEXTURE_FORMATS: 1596 case GL_NUM_COMPRESSED_TEXTURE_FORMATS: 1597 case GL_ARRAY_BUFFER_BINDING: 1598 case GL_FRAMEBUFFER_BINDING_OES: 1599 case GL_RENDERBUFFER_BINDING_OES: 1600 case GL_PACK_ALIGNMENT: 1601 case GL_UNPACK_ALIGNMENT: 1602 case GL_GENERATE_MIPMAP_HINT: 1603 case GL_RED_BITS: 1604 case GL_GREEN_BITS: 1605 case GL_BLUE_BITS: 1606 case GL_ALPHA_BITS: 1607 case GL_DEPTH_BITS: 1608 case GL_STENCIL_BITS: 1609 case GL_ELEMENT_ARRAY_BUFFER_BINDING: 1610 case GL_CULL_FACE_MODE: 1611 case GL_FRONT_FACE: 1612 case GL_ACTIVE_TEXTURE: 1613 case GL_STENCIL_FUNC: 1614 case GL_STENCIL_VALUE_MASK: 1615 case GL_STENCIL_REF: 1616 case GL_STENCIL_FAIL: 1617 case GL_STENCIL_PASS_DEPTH_FAIL: 1618 case GL_STENCIL_PASS_DEPTH_PASS: 1619 case GL_DEPTH_FUNC: 1620 case GL_BLEND_SRC_RGB_OES: 1621 case GL_BLEND_SRC_ALPHA_OES: 1622 case GL_BLEND_DST_RGB_OES: 1623 case GL_BLEND_DST_ALPHA_OES: 1624 case GL_BLEND_EQUATION_RGB_OES: 1625 case GL_BLEND_EQUATION_ALPHA_OES: 1626 case GL_STENCIL_WRITEMASK: 1627 case GL_STENCIL_CLEAR_VALUE: 1628 case GL_SUBPIXEL_BITS: 1629 case GL_MAX_TEXTURE_SIZE: 1630 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_OES: 1631 case GL_SAMPLE_BUFFERS: 1632 case GL_SAMPLES: 1633 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES: 1634 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES: 1635 case GL_TEXTURE_BINDING_2D: 1636 case GL_TEXTURE_BINDING_CUBE_MAP_OES: 1637 case GL_TEXTURE_BINDING_EXTERNAL_OES: 1638 case GL_MAX_VIEWPORT_DIMS: 1639 case GL_VIEWPORT: 1640 case GL_SCISSOR_BOX: 1641 case GL_MAX_LIGHTS: 1642 case GL_MAX_MODELVIEW_STACK_DEPTH: 1643 case GL_MAX_PROJECTION_STACK_DEPTH: 1644 case GL_MAX_TEXTURE_STACK_DEPTH: 1645 case GL_MAX_TEXTURE_UNITS: 1646 case GL_MAX_CLIP_PLANES: 1647 case GL_POINT_SIZE_ARRAY_TYPE_OES: 1648 case GL_POINT_SIZE_ARRAY_STRIDE_OES: 1649 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES: 1650 return true; 1651 } 1652 1653 return false; 1654} 1655 1656bool Context::isQueryParameterFloat(GLenum pname) 1657{ 1658 // Please note: the query type returned for DEPTH_CLEAR_VALUE in this implementation 1659 // is FLOAT rather than INT, as would be suggested by the GL ES 2.0 spec. This is due 1660 // to the fact that it is stored internally as a float, and so would require conversion 1661 // if returned from Context::getIntegerv. Since this conversion is already implemented 1662 // in the case that one calls glGetIntegerv to retrieve a float-typed state variable, we 1663 // place DEPTH_CLEAR_VALUE with the floats. This should make no difference to the calling 1664 // application. 1665 switch(pname) 1666 { 1667 case GL_POLYGON_OFFSET_FACTOR: 1668 case GL_POLYGON_OFFSET_UNITS: 1669 case GL_SAMPLE_COVERAGE_VALUE: 1670 case GL_DEPTH_CLEAR_VALUE: 1671 case GL_LINE_WIDTH: 1672 case GL_ALIASED_LINE_WIDTH_RANGE: 1673 case GL_ALIASED_POINT_SIZE_RANGE: 1674 case GL_SMOOTH_LINE_WIDTH_RANGE: 1675 case GL_SMOOTH_POINT_SIZE_RANGE: 1676 case GL_DEPTH_RANGE: 1677 case GL_COLOR_CLEAR_VALUE: 1678 case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: 1679 case GL_LIGHT_MODEL_AMBIENT: 1680 case GL_POINT_SIZE_MIN: 1681 case GL_POINT_SIZE_MAX: 1682 case GL_POINT_DISTANCE_ATTENUATION: 1683 case GL_POINT_FADE_THRESHOLD_SIZE: 1684 return true; 1685 } 1686 1687 return false; 1688} 1689 1690bool Context::isQueryParameterBool(GLenum pname) 1691{ 1692 switch(pname) 1693 { 1694 case GL_SAMPLE_COVERAGE_INVERT: 1695 case GL_DEPTH_WRITEMASK: 1696 case GL_CULL_FACE: // CULL_FACE through DITHER are natural to IsEnabled, 1697 case GL_POLYGON_OFFSET_FILL: // but can be retrieved through the Get{Type}v queries. 1698 case GL_SAMPLE_ALPHA_TO_COVERAGE: // For this purpose, they are treated here as bool-natural 1699 case GL_SAMPLE_COVERAGE: 1700 case GL_SCISSOR_TEST: 1701 case GL_STENCIL_TEST: 1702 case GL_DEPTH_TEST: 1703 case GL_BLEND: 1704 case GL_DITHER: 1705 case GL_COLOR_WRITEMASK: 1706 case GL_LIGHT_MODEL_TWO_SIDE: 1707 return true; 1708 } 1709 1710 return false; 1711} 1712 1713bool Context::isQueryParameterPointer(GLenum pname) 1714{ 1715 switch(pname) 1716 { 1717 case GL_VERTEX_ARRAY_POINTER: 1718 case GL_NORMAL_ARRAY_POINTER: 1719 case GL_COLOR_ARRAY_POINTER: 1720 case GL_TEXTURE_COORD_ARRAY_POINTER: 1721 case GL_POINT_SIZE_ARRAY_POINTER_OES: 1722 return true; 1723 } 1724 1725 return false; 1726} 1727 1728// Applies the render target surface, depth stencil surface, viewport rectangle and scissor rectangle 1729bool Context::applyRenderTarget() 1730{ 1731 Framebuffer *framebuffer = getFramebuffer(); 1732 int width, height, samples; 1733 1734 if(!framebuffer || framebuffer->completeness(width, height, samples) != GL_FRAMEBUFFER_COMPLETE_OES) 1735 { 1736 return error(GL_INVALID_FRAMEBUFFER_OPERATION_OES, false); 1737 } 1738 1739 egl::Image *renderTarget = framebuffer->getRenderTarget(); 1740 device->setRenderTarget(0, renderTarget); 1741 if(renderTarget) renderTarget->release(); 1742 1743 egl::Image *depthBuffer = framebuffer->getDepthBuffer(); 1744 device->setDepthBuffer(depthBuffer); 1745 if(depthBuffer) depthBuffer->release(); 1746 1747 egl::Image *stencilBuffer = framebuffer->getStencilBuffer(); 1748 device->setStencilBuffer(stencilBuffer); 1749 if(stencilBuffer) stencilBuffer->release(); 1750 1751 Viewport viewport; 1752 float zNear = clamp01(mState.zNear); 1753 float zFar = clamp01(mState.zFar); 1754 1755 viewport.x0 = mState.viewportX; 1756 viewport.y0 = mState.viewportY; 1757 viewport.width = mState.viewportWidth; 1758 viewport.height = mState.viewportHeight; 1759 viewport.minZ = zNear; 1760 viewport.maxZ = zFar; 1761 1762 device->setViewport(viewport); 1763 1764 if(mState.scissorTestEnabled) 1765 { 1766 sw::Rect scissor = {mState.scissorX, mState.scissorY, mState.scissorX + mState.scissorWidth, mState.scissorY + mState.scissorHeight}; 1767 scissor.clip(0, 0, width, height); 1768 1769 device->setScissorRect(scissor); 1770 device->setScissorEnable(true); 1771 } 1772 else 1773 { 1774 device->setScissorEnable(false); 1775 } 1776 1777 return true; 1778} 1779 1780// Applies the fixed-function state (culling, depth test, alpha blending, stenciling, etc) 1781void Context::applyState(GLenum drawMode) 1782{ 1783 Framebuffer *framebuffer = getFramebuffer(); 1784 1785 if(mState.cullFaceEnabled) 1786 { 1787 device->setCullMode(es2sw::ConvertCullMode(mState.cullMode, mState.frontFace)); 1788 } 1789 else 1790 { 1791 device->setCullMode(sw::CULL_NONE); 1792 } 1793 1794 if(mDepthStateDirty) 1795 { 1796 if(mState.depthTestEnabled) 1797 { 1798 device->setDepthBufferEnable(true); 1799 device->setDepthCompare(es2sw::ConvertDepthComparison(mState.depthFunc)); 1800 } 1801 else 1802 { 1803 device->setDepthBufferEnable(false); 1804 } 1805 1806 mDepthStateDirty = false; 1807 } 1808 1809 if(mBlendStateDirty) 1810 { 1811 if(mState.blendEnabled) 1812 { 1813 device->setAlphaBlendEnable(true); 1814 device->setSeparateAlphaBlendEnable(true); 1815 1816 device->setSourceBlendFactor(es2sw::ConvertBlendFunc(mState.sourceBlendRGB)); 1817 device->setDestBlendFactor(es2sw::ConvertBlendFunc(mState.destBlendRGB)); 1818 device->setBlendOperation(es2sw::ConvertBlendOp(mState.blendEquationRGB)); 1819 1820 device->setSourceBlendFactorAlpha(es2sw::ConvertBlendFunc(mState.sourceBlendAlpha)); 1821 device->setDestBlendFactorAlpha(es2sw::ConvertBlendFunc(mState.destBlendAlpha)); 1822 device->setBlendOperationAlpha(es2sw::ConvertBlendOp(mState.blendEquationAlpha)); 1823 } 1824 else 1825 { 1826 device->setAlphaBlendEnable(false); 1827 } 1828 1829 mBlendStateDirty = false; 1830 } 1831 1832 if(mStencilStateDirty || mFrontFaceDirty) 1833 { 1834 if(mState.stencilTestEnabled && framebuffer->hasStencil()) 1835 { 1836 device->setStencilEnable(true); 1837 device->setTwoSidedStencil(true); 1838 1839 // get the maximum size of the stencil ref 1840 Renderbuffer *stencilbuffer = framebuffer->getStencilbuffer(); 1841 GLuint maxStencil = (1 << stencilbuffer->getStencilSize()) - 1; 1842 1843 device->setStencilWriteMask(mState.stencilWritemask); 1844 device->setStencilCompare(es2sw::ConvertStencilComparison(mState.stencilFunc)); 1845 1846 device->setStencilReference((mState.stencilRef < (GLint)maxStencil) ? mState.stencilRef : maxStencil); 1847 device->setStencilMask(mState.stencilMask); 1848 1849 device->setStencilFailOperation(es2sw::ConvertStencilOp(mState.stencilFail)); 1850 device->setStencilZFailOperation(es2sw::ConvertStencilOp(mState.stencilPassDepthFail)); 1851 device->setStencilPassOperation(es2sw::ConvertStencilOp(mState.stencilPassDepthPass)); 1852 1853 device->setStencilWriteMaskCCW(mState.stencilWritemask); 1854 device->setStencilCompareCCW(es2sw::ConvertStencilComparison(mState.stencilFunc)); 1855 1856 device->setStencilReferenceCCW((mState.stencilRef < (GLint)maxStencil) ? mState.stencilRef : maxStencil); 1857 device->setStencilMaskCCW(mState.stencilMask); 1858 1859 device->setStencilFailOperationCCW(es2sw::ConvertStencilOp(mState.stencilFail)); 1860 device->setStencilZFailOperationCCW(es2sw::ConvertStencilOp(mState.stencilPassDepthFail)); 1861 device->setStencilPassOperationCCW(es2sw::ConvertStencilOp(mState.stencilPassDepthPass)); 1862 } 1863 else 1864 { 1865 device->setStencilEnable(false); 1866 } 1867 1868 mStencilStateDirty = false; 1869 mFrontFaceDirty = false; 1870 } 1871 1872 if(mMaskStateDirty) 1873 { 1874 device->setColorWriteMask(0, es2sw::ConvertColorMask(mState.colorMaskRed, mState.colorMaskGreen, mState.colorMaskBlue, mState.colorMaskAlpha)); 1875 device->setDepthWriteEnable(mState.depthMask); 1876 1877 mMaskStateDirty = false; 1878 } 1879 1880 if(mPolygonOffsetStateDirty) 1881 { 1882 if(mState.polygonOffsetFillEnabled) 1883 { 1884 Renderbuffer *depthbuffer = framebuffer->getDepthbuffer(); 1885 if(depthbuffer) 1886 { 1887 device->setSlopeDepthBias(mState.polygonOffsetFactor); 1888 float depthBias = ldexp(mState.polygonOffsetUnits, -(int)(depthbuffer->getDepthSize())); 1889 device->setDepthBias(depthBias); 1890 } 1891 } 1892 else 1893 { 1894 device->setSlopeDepthBias(0); 1895 device->setDepthBias(0); 1896 } 1897 1898 mPolygonOffsetStateDirty = false; 1899 } 1900 1901 if(mSampleStateDirty) 1902 { 1903 if(mState.sampleAlphaToCoverageEnabled) 1904 { 1905 device->setTransparencyAntialiasing(sw::TRANSPARENCY_ALPHA_TO_COVERAGE); 1906 } 1907 else 1908 { 1909 device->setTransparencyAntialiasing(sw::TRANSPARENCY_NONE); 1910 } 1911 1912 if(mState.sampleCoverageEnabled) 1913 { 1914 unsigned int mask = 0; 1915 if(mState.sampleCoverageValue != 0) 1916 { 1917 int width, height, samples; 1918 framebuffer->completeness(width, height, samples); 1919 1920 float threshold = 0.5f; 1921 1922 for(int i = 0; i < samples; i++) 1923 { 1924 mask <<= 1; 1925 1926 if((i + 1) * mState.sampleCoverageValue >= threshold) 1927 { 1928 threshold += 1.0f; 1929 mask |= 1; 1930 } 1931 } 1932 } 1933 1934 if(mState.sampleCoverageInvert) 1935 { 1936 mask = ~mask; 1937 } 1938 1939 device->setMultiSampleMask(mask); 1940 } 1941 else 1942 { 1943 device->setMultiSampleMask(0xFFFFFFFF); 1944 } 1945 1946 mSampleStateDirty = false; 1947 } 1948 1949 if(mDitherStateDirty) 1950 { 1951 // UNIMPLEMENTED(); // FIXME 1952 1953 mDitherStateDirty = false; 1954 } 1955 1956 switch(mState.shadeModel) 1957 { 1958 default: UNREACHABLE(mState.shadeModel); 1959 case GL_SMOOTH: device->setShadingMode(sw::SHADING_GOURAUD); break; 1960 case GL_FLAT: device->setShadingMode(sw::SHADING_FLAT); break; 1961 } 1962 1963 device->setLightingEnable(lightingEnabled); 1964 device->setGlobalAmbient(sw::Color<float>(globalAmbient.red, globalAmbient.green, globalAmbient.blue, globalAmbient.alpha)); 1965 1966 for(int i = 0; i < MAX_LIGHTS; i++) 1967 { 1968 device->setLightEnable(i, light[i].enabled); 1969 device->setLightAmbient(i, sw::Color<float>(light[i].ambient.red, light[i].ambient.green, light[i].ambient.blue, light[i].ambient.alpha)); 1970 device->setLightDiffuse(i, sw::Color<float>(light[i].diffuse.red, light[i].diffuse.green, light[i].diffuse.blue, light[i].diffuse.alpha)); 1971 device->setLightSpecular(i, sw::Color<float>(light[i].specular.red, light[i].specular.green, light[i].specular.blue, light[i].specular.alpha)); 1972 device->setLightAttenuation(i, light[i].attenuation.constant, light[i].attenuation.linear, light[i].attenuation.quadratic); 1973 1974 if(light[i].position.w != 0.0f) 1975 { 1976 device->setLightPosition(i, sw::Point(light[i].position.x / light[i].position.w, light[i].position.y / light[i].position.w, light[i].position.z / light[i].position.w)); 1977 } 1978 else // Directional light 1979 { 1980 // Hack: set the position far way 1981 float max = sw::max(abs(light[i].position.x), abs(light[i].position.y), abs(light[i].position.z)); 1982 device->setLightPosition(i, sw::Point(1e10f * (light[i].position.x / max), 1e10f * (light[i].position.y / max), 1e10f * (light[i].position.z / max))); 1983 } 1984 } 1985 1986 device->setMaterialAmbient(sw::Color<float>(materialAmbient.red, materialAmbient.green, materialAmbient.blue, materialAmbient.alpha)); 1987 device->setMaterialDiffuse(sw::Color<float>(materialDiffuse.red, materialDiffuse.green, materialDiffuse.blue, materialDiffuse.alpha)); 1988 device->setMaterialSpecular(sw::Color<float>(materialSpecular.red, materialSpecular.green, materialSpecular.blue, materialSpecular.alpha)); 1989 device->setMaterialEmission(sw::Color<float>(materialEmission.red, materialEmission.green, materialEmission.blue, materialEmission.alpha)); 1990 device->setMaterialShininess(materialShininess); 1991 1992 device->setDiffuseMaterialSource(sw::MATERIAL_MATERIAL); 1993 device->setSpecularMaterialSource(sw::MATERIAL_MATERIAL); 1994 device->setAmbientMaterialSource(sw::MATERIAL_MATERIAL); 1995 device->setEmissiveMaterialSource(sw::MATERIAL_MATERIAL); 1996 1997 device->setProjectionMatrix(projectionStack.current()); 1998 device->setModelMatrix(modelViewStack.current()); 1999 device->setTextureMatrix(0, textureStack0.current()); 2000 device->setTextureMatrix(1, textureStack1.current()); 2001 device->setTextureTransform(0, textureStack0.isIdentity() ? 0 : 4, false); 2002 device->setTextureTransform(1, textureStack1.isIdentity() ? 0 : 4, false); 2003 device->setTexGen(0, sw::TEXGEN_NONE); 2004 device->setTexGen(1, sw::TEXGEN_NONE); 2005 2006 device->setAlphaTestEnable(alphaTestEnabled); 2007 device->setAlphaCompare(es2sw::ConvertAlphaComparison(alphaTestFunc)); 2008 device->setAlphaReference(alphaTestRef * 0xFF); 2009 2010 device->setFogEnable(fogEnabled); 2011 device->setFogColor(sw::Color<float>(fogColor.red, fogColor.green, fogColor.blue, fogColor.alpha)); 2012 device->setFogDensity(fogDensity); 2013 device->setFogStart(fogStart); 2014 device->setFogEnd(fogEnd); 2015 2016 switch(fogMode) 2017 { 2018 case GL_LINEAR: device->setVertexFogMode(sw::FOG_LINEAR); break; 2019 case GL_EXP: device->setVertexFogMode(sw::FOG_EXP); break; 2020 case GL_EXP2: device->setVertexFogMode(sw::FOG_EXP2); break; 2021 default: UNREACHABLE(fogMode); 2022 } 2023 2024 device->setColorLogicOpEnabled(colorLogicOpEnabled); 2025 device->setLogicalOperation(es2sw::ConvertLogicalOperation(logicalOperation)); 2026 2027 device->setNormalizeNormals(normalizeEnabled || rescaleNormalEnabled); 2028} 2029 2030GLenum Context::applyVertexBuffer(GLint base, GLint first, GLsizei count) 2031{ 2032 TranslatedAttribute attributes[MAX_VERTEX_ATTRIBS]; 2033 2034 GLenum err = mVertexDataManager->prepareVertexData(first, count, attributes); 2035 if(err != GL_NO_ERROR) 2036 { 2037 return err; 2038 } 2039 2040 device->resetInputStreams(false); 2041 2042 for(int i = 0; i < MAX_VERTEX_ATTRIBS; i++) 2043 { 2044 sw::Resource *resource = attributes[i].vertexBuffer; 2045 const void *buffer = (char*)resource->data() + attributes[i].offset; 2046 2047 int stride = attributes[i].stride; 2048 2049 buffer = (char*)buffer + stride * base; 2050 2051 sw::Stream attribute(resource, buffer, stride); 2052 2053 attribute.type = attributes[i].type; 2054 attribute.count = attributes[i].count; 2055 attribute.normalized = attributes[i].normalized; 2056 2057 device->setInputStream(i, attribute); 2058 } 2059 2060 return GL_NO_ERROR; 2061} 2062 2063// Applies the indices and element array bindings 2064GLenum Context::applyIndexBuffer(const void *indices, GLsizei count, GLenum mode, GLenum type, TranslatedIndexData *indexInfo) 2065{ 2066 GLenum err = mIndexDataManager->prepareIndexData(type, count, mState.elementArrayBuffer, indices, indexInfo); 2067 2068 if(err == GL_NO_ERROR) 2069 { 2070 device->setIndexBuffer(indexInfo->indexBuffer); 2071 } 2072 2073 return err; 2074} 2075 2076void Context::applyTextures() 2077{ 2078 for(int unit = 0; unit < MAX_TEXTURE_UNITS; unit++) 2079 { 2080 Texture *texture = nullptr; 2081 2082 if(textureExternalEnabled[unit]) 2083 { 2084 texture = getSamplerTexture(unit, TEXTURE_EXTERNAL); 2085 } 2086 else if(texture2Denabled[unit]) 2087 { 2088 texture = getSamplerTexture(unit, TEXTURE_2D); 2089 } 2090 2091 if(texture && texture->isSamplerComplete()) 2092 { 2093 texture->autoGenerateMipmaps(); 2094 2095 GLenum wrapS = texture->getWrapS(); 2096 GLenum wrapT = texture->getWrapT(); 2097 GLenum minFilter = texture->getMinFilter(); 2098 GLenum magFilter = texture->getMagFilter(); 2099 GLfloat maxAnisotropy = texture->getMaxAnisotropy(); 2100 2101 device->setAddressingModeU(sw::SAMPLER_PIXEL, unit, es2sw::ConvertTextureWrap(wrapS)); 2102 device->setAddressingModeV(sw::SAMPLER_PIXEL, unit, es2sw::ConvertTextureWrap(wrapT)); 2103 2104 device->setTextureFilter(sw::SAMPLER_PIXEL, unit, es2sw::ConvertTextureFilter(minFilter, magFilter, maxAnisotropy)); 2105 device->setMipmapFilter(sw::SAMPLER_PIXEL, unit, es2sw::ConvertMipMapFilter(minFilter)); 2106 device->setMaxAnisotropy(sw::SAMPLER_PIXEL, unit, maxAnisotropy); 2107 2108 applyTexture(unit, texture); 2109 2110 device->setConstantColor(unit, sw::Color<float>(mState.textureUnit[unit].color.red, mState.textureUnit[unit].color.green, mState.textureUnit[unit].color.blue, mState.textureUnit[unit].color.alpha)); 2111 2112 if(mState.textureUnit[unit].environmentMode != GL_COMBINE) 2113 { 2114 device->setFirstArgument(unit, sw::TextureStage::SOURCE_TEXTURE); // Cs 2115 device->setFirstModifier(unit, sw::TextureStage::MODIFIER_COLOR); 2116 device->setSecondArgument(unit, sw::TextureStage::SOURCE_CURRENT); // Cp 2117 device->setSecondModifier(unit, sw::TextureStage::MODIFIER_COLOR); 2118 device->setThirdArgument(unit, sw::TextureStage::SOURCE_CONSTANT); // Cc 2119 device->setThirdModifier(unit, sw::TextureStage::MODIFIER_COLOR); 2120 2121 device->setFirstArgumentAlpha(unit, sw::TextureStage::SOURCE_TEXTURE); // As 2122 device->setFirstModifierAlpha(unit, sw::TextureStage::MODIFIER_ALPHA); 2123 device->setSecondArgumentAlpha(unit, sw::TextureStage::SOURCE_CURRENT); // Ap 2124 device->setSecondModifierAlpha(unit, sw::TextureStage::MODIFIER_ALPHA); 2125 device->setThirdArgumentAlpha(unit, sw::TextureStage::SOURCE_CONSTANT); // Ac 2126 device->setThirdModifierAlpha(unit, sw::TextureStage::MODIFIER_ALPHA); 2127 2128 GLenum texFormat = texture->getFormat(GL_TEXTURE_2D, 0); 2129 2130 switch(mState.textureUnit[unit].environmentMode) 2131 { 2132 case GL_REPLACE: 2133 if(IsAlpha(texFormat)) // GL_ALPHA 2134 { 2135 // Cv = Cp, Av = As 2136 device->setStageOperation(unit, sw::TextureStage::STAGE_SELECTARG2); 2137 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_SELECTARG1); 2138 } 2139 else if(IsRGB(texFormat)) // GL_LUMINANCE (or 1) / GL_RGB (or 3) 2140 { 2141 // Cv = Cs, Av = Ap 2142 device->setStageOperation(unit, sw::TextureStage::STAGE_SELECTARG1); 2143 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_SELECTARG2); 2144 } 2145 else if(IsRGBA(texFormat)) // GL_LUMINANCE_ALPHA (or 2) / GL_RGBA (or 4) 2146 { 2147 // Cv = Cs, Av = As 2148 device->setStageOperation(unit, sw::TextureStage::STAGE_SELECTARG1); 2149 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_SELECTARG1); 2150 } 2151 else UNREACHABLE(texFormat); 2152 break; 2153 case GL_MODULATE: 2154 if(IsAlpha(texFormat)) // GL_ALPHA 2155 { 2156 // Cv = Cp, Av = ApAs 2157 device->setStageOperation(unit, sw::TextureStage::STAGE_SELECTARG2); 2158 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_MODULATE); 2159 } 2160 else if(IsRGB(texFormat)) // GL_LUMINANCE (or 1) / GL_RGB (or 3) 2161 { 2162 // Cv = CpCs, Av = Ap 2163 device->setStageOperation(unit, sw::TextureStage::STAGE_MODULATE); 2164 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_SELECTARG2); 2165 } 2166 else if(IsRGBA(texFormat)) // GL_LUMINANCE_ALPHA (or 2) / GL_RGBA (or 4) 2167 { 2168 // Cv = CpCs, Av = ApAs 2169 device->setStageOperation(unit, sw::TextureStage::STAGE_MODULATE); 2170 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_MODULATE); 2171 } 2172 else UNREACHABLE(texFormat); 2173 break; 2174 case GL_DECAL: 2175 if(texFormat == GL_ALPHA || 2176 texFormat == GL_LUMINANCE || 2177 texFormat == GL_LUMINANCE_ALPHA) 2178 { 2179 // undefined // FIXME: Log 2180 device->setStageOperation(unit, sw::TextureStage::STAGE_SELECTARG2); 2181 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_SELECTARG2); 2182 } 2183 else if(IsRGB(texFormat)) // GL_LUMINANCE (or 1) / GL_RGB (or 3) 2184 { 2185 // Cv = Cs, Av = Ap 2186 device->setStageOperation(unit, sw::TextureStage::STAGE_SELECTARG1); 2187 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_SELECTARG2); 2188 } 2189 else if(IsRGBA(texFormat)) // GL_LUMINANCE_ALPHA (or 2) / GL_RGBA (or 4) 2190 { 2191 // Cv = Cp(1 - As) + CsAs, Av = Ap 2192 device->setStageOperation(unit, sw::TextureStage::STAGE_BLENDTEXTUREALPHA); // Alpha * (Arg1 - Arg2) + Arg2 2193 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_SELECTARG2); 2194 } 2195 else UNREACHABLE(texFormat); 2196 break; 2197 case GL_BLEND: 2198 if(IsAlpha(texFormat)) // GL_ALPHA 2199 { 2200 // Cv = Cp, Av = ApAs 2201 device->setStageOperation(unit, sw::TextureStage::STAGE_SELECTARG2); 2202 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_MODULATE); 2203 } 2204 else if(IsRGB(texFormat)) // GL_LUMINANCE (or 1) / GL_RGB (or 3) 2205 { 2206 // Cv = Cp(1 - Cs) + CcCs, Av = Ap 2207 device->setStageOperation(unit, sw::TextureStage::STAGE_LERP); // Arg3 * (Arg1 - Arg2) + Arg2 2208 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_SELECTARG2); 2209 } 2210 else if(IsRGBA(texFormat)) // GL_LUMINANCE_ALPHA (or 2) / GL_RGBA (or 4) 2211 { 2212 // Cv = Cp(1 - Cs) + CcCs, Av = ApAs 2213 device->setStageOperation(unit, sw::TextureStage::STAGE_LERP); // Arg3 * (Arg1 - Arg2) + Arg2 2214 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_MODULATE); 2215 } 2216 else UNREACHABLE(texFormat); 2217 break; 2218 case GL_ADD: 2219 if(IsAlpha(texFormat)) // GL_ALPHA 2220 { 2221 // Cv = Cp, Av = ApAs 2222 device->setStageOperation(unit, sw::TextureStage::STAGE_SELECTARG2); 2223 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_MODULATE); 2224 } 2225 else if(IsRGB(texFormat)) // GL_LUMINANCE (or 1) / GL_RGB (or 3) 2226 { 2227 // Cv = Cp + Cs, Av = Ap 2228 device->setStageOperation(unit, sw::TextureStage::STAGE_ADD); 2229 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_SELECTARG2); 2230 } 2231 else if(IsRGBA(texFormat)) // GL_LUMINANCE_ALPHA (or 2) / GL_RGBA (or 4) 2232 { 2233 // Cv = Cp + Cs, Av = ApAs 2234 device->setStageOperation(unit, sw::TextureStage::STAGE_ADD); 2235 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_MODULATE); 2236 } 2237 else UNREACHABLE(texFormat); 2238 break; 2239 default: 2240 UNREACHABLE(mState.textureUnit[unit].environmentMode); 2241 } 2242 } 2243 else // GL_COMBINE 2244 { 2245 device->setFirstArgument(unit, es2sw::ConvertSourceArgument(mState.textureUnit[unit].src0RGB)); 2246 device->setFirstModifier(unit, es2sw::ConvertSourceOperand(mState.textureUnit[unit].operand0RGB)); 2247 device->setSecondArgument(unit, es2sw::ConvertSourceArgument(mState.textureUnit[unit].src1RGB)); 2248 device->setSecondModifier(unit, es2sw::ConvertSourceOperand(mState.textureUnit[unit].operand1RGB)); 2249 device->setThirdArgument(unit, es2sw::ConvertSourceArgument(mState.textureUnit[unit].src2RGB)); 2250 device->setThirdModifier(unit, es2sw::ConvertSourceOperand(mState.textureUnit[unit].operand2RGB)); 2251 2252 device->setStageOperation(unit, es2sw::ConvertCombineOperation(mState.textureUnit[unit].combineRGB)); 2253 2254 device->setFirstArgumentAlpha(unit, es2sw::ConvertSourceArgument(mState.textureUnit[unit].src0Alpha)); 2255 device->setFirstModifierAlpha(unit, es2sw::ConvertSourceOperand(mState.textureUnit[unit].operand0Alpha)); 2256 device->setSecondArgumentAlpha(unit, es2sw::ConvertSourceArgument(mState.textureUnit[unit].src1Alpha)); 2257 device->setSecondModifierAlpha(unit, es2sw::ConvertSourceOperand(mState.textureUnit[unit].operand1Alpha)); 2258 device->setThirdArgumentAlpha(unit, es2sw::ConvertSourceArgument(mState.textureUnit[unit].src2Alpha)); 2259 device->setThirdModifierAlpha(unit, es2sw::ConvertSourceOperand(mState.textureUnit[unit].operand2Alpha)); 2260 2261 device->setStageOperationAlpha(unit, es2sw::ConvertCombineOperation(mState.textureUnit[unit].combineAlpha)); 2262 } 2263 } 2264 else 2265 { 2266 applyTexture(unit, nullptr); 2267 2268 device->setFirstArgument(unit, sw::TextureStage::SOURCE_CURRENT); 2269 device->setFirstModifier(unit, sw::TextureStage::MODIFIER_COLOR); 2270 device->setStageOperation(unit, sw::TextureStage::STAGE_SELECTARG1); 2271 2272 device->setFirstArgumentAlpha(unit, sw::TextureStage::SOURCE_CURRENT); 2273 device->setFirstModifierAlpha(unit, sw::TextureStage::MODIFIER_ALPHA); 2274 device->setStageOperationAlpha(unit, sw::TextureStage::STAGE_SELECTARG1); 2275 } 2276 } 2277} 2278 2279void Context::setTextureEnvMode(GLenum texEnvMode) 2280{ 2281 mState.textureUnit[mState.activeSampler].environmentMode = texEnvMode; 2282} 2283 2284void Context::setTextureEnvColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha) 2285{ 2286 mState.textureUnit[mState.activeSampler].color = {red, green, blue, alpha}; 2287} 2288 2289void Context::setCombineRGB(GLenum combineRGB) 2290{ 2291 mState.textureUnit[mState.activeSampler].combineRGB = combineRGB; 2292} 2293 2294void Context::setCombineAlpha(GLenum combineAlpha) 2295{ 2296 mState.textureUnit[mState.activeSampler].combineAlpha = combineAlpha; 2297} 2298 2299void Context::setOperand0RGB(GLenum operand) 2300{ 2301 mState.textureUnit[mState.activeSampler].operand0RGB = operand; 2302} 2303 2304void Context::setOperand1RGB(GLenum operand) 2305{ 2306 mState.textureUnit[mState.activeSampler].operand1RGB = operand; 2307} 2308 2309void Context::setOperand2RGB(GLenum operand) 2310{ 2311 mState.textureUnit[mState.activeSampler].operand2RGB = operand; 2312} 2313 2314void Context::setOperand0Alpha(GLenum operand) 2315{ 2316 mState.textureUnit[mState.activeSampler].operand0Alpha = operand; 2317} 2318 2319void Context::setOperand1Alpha(GLenum operand) 2320{ 2321 mState.textureUnit[mState.activeSampler].operand1Alpha = operand; 2322} 2323 2324void Context::setOperand2Alpha(GLenum operand) 2325{ 2326 mState.textureUnit[mState.activeSampler].operand2Alpha = operand; 2327} 2328 2329void Context::setSrc0RGB(GLenum src) 2330{ 2331 mState.textureUnit[mState.activeSampler].src0RGB = src; 2332} 2333 2334void Context::setSrc1RGB(GLenum src) 2335{ 2336 mState.textureUnit[mState.activeSampler].src1RGB = src; 2337} 2338 2339void Context::setSrc2RGB(GLenum src) 2340{ 2341 mState.textureUnit[mState.activeSampler].src2RGB = src; 2342} 2343 2344void Context::setSrc0Alpha(GLenum src) 2345{ 2346 mState.textureUnit[mState.activeSampler].src0Alpha = src; 2347} 2348 2349void Context::setSrc1Alpha(GLenum src) 2350{ 2351 mState.textureUnit[mState.activeSampler].src1Alpha = src; 2352} 2353 2354void Context::setSrc2Alpha(GLenum src) 2355{ 2356 mState.textureUnit[mState.activeSampler].src2Alpha = src; 2357} 2358 2359void Context::applyTexture(int index, Texture *baseTexture) 2360{ 2361 sw::Resource *resource = 0; 2362 2363 if(baseTexture) 2364 { 2365 resource = baseTexture->getResource(); 2366 } 2367 2368 device->setTextureResource(index, resource); 2369 2370 if(baseTexture) 2371 { 2372 int topLevel = baseTexture->getTopLevel(); 2373 2374 if(baseTexture->getTarget() == GL_TEXTURE_2D || baseTexture->getTarget() == GL_TEXTURE_EXTERNAL_OES) 2375 { 2376 Texture2D *texture = static_cast<Texture2D*>(baseTexture); 2377 2378 for(int mipmapLevel = 0; mipmapLevel < sw::MIPMAP_LEVELS; mipmapLevel++) 2379 { 2380 int surfaceLevel = mipmapLevel; 2381 2382 if(surfaceLevel < 0) 2383 { 2384 surfaceLevel = 0; 2385 } 2386 else if(surfaceLevel > topLevel) 2387 { 2388 surfaceLevel = topLevel; 2389 } 2390 2391 egl::Image *surface = texture->getImage(surfaceLevel); 2392 device->setTextureLevel(index, 0, mipmapLevel, surface, sw::TEXTURE_2D); 2393 } 2394 } 2395 else UNIMPLEMENTED(); 2396 } 2397 else 2398 { 2399 device->setTextureLevel(index, 0, 0, 0, sw::TEXTURE_NULL); 2400 } 2401} 2402 2403void Context::readPixels(GLint x, GLint y, GLsizei width, GLsizei height, 2404 GLenum format, GLenum type, GLsizei *bufSize, void* pixels) 2405{ 2406 Framebuffer *framebuffer = getFramebuffer(); 2407 int framebufferWidth, framebufferHeight, framebufferSamples; 2408 2409 if(!framebuffer || (framebuffer->completeness(framebufferWidth, framebufferHeight, framebufferSamples) != GL_FRAMEBUFFER_COMPLETE_OES)) 2410 { 2411 return error(GL_INVALID_FRAMEBUFFER_OPERATION_OES); 2412 } 2413 2414 if(getFramebufferName() != 0 && framebufferSamples != 0) 2415 { 2416 return error(GL_INVALID_OPERATION); 2417 } 2418 2419 if(format != GL_RGBA || type != GL_UNSIGNED_BYTE) 2420 { 2421 if(format != framebuffer->getImplementationColorReadFormat() || type != framebuffer->getImplementationColorReadType()) 2422 { 2423 return error(GL_INVALID_OPERATION); 2424 } 2425 } 2426 2427 GLsizei outputPitch = gl::ComputePitch(width, format, type, mState.packAlignment); 2428 2429 // Sized query sanity check 2430 if(bufSize) 2431 { 2432 int requiredSize = outputPitch * height; 2433 if(requiredSize > *bufSize) 2434 { 2435 return error(GL_INVALID_OPERATION); 2436 } 2437 } 2438 2439 egl::Image *renderTarget = framebuffer->getRenderTarget(); 2440 2441 if(!renderTarget) 2442 { 2443 return error(GL_OUT_OF_MEMORY); 2444 } 2445 2446 sw::Rect rect = {x, y, x + width, y + height}; 2447 rect.clip(0, 0, renderTarget->getWidth(), renderTarget->getHeight()); 2448 2449 unsigned char *source = (unsigned char*)renderTarget->lock(rect.x0, rect.y0, 0, sw::LOCK_READONLY); 2450 unsigned char *dest = (unsigned char*)pixels; 2451 int inputPitch = (int)renderTarget->getPitch(); 2452 2453 for(int j = 0; j < rect.y1 - rect.y0; j++) 2454 { 2455 unsigned short *dest16 = (unsigned short*)dest; 2456 unsigned int *dest32 = (unsigned int*)dest; 2457 2458 if(renderTarget->getExternalFormat() == sw::FORMAT_A8B8G8R8 && 2459 format == GL_RGBA && type == GL_UNSIGNED_BYTE) 2460 { 2461 memcpy(dest, source, (rect.x1 - rect.x0) * 4); 2462 } 2463 else if(renderTarget->getExternalFormat() == sw::FORMAT_A8R8G8B8 && 2464 format == GL_RGBA && type == GL_UNSIGNED_BYTE) 2465 { 2466 for(int i = 0; i < rect.x1 - rect.x0; i++) 2467 { 2468 unsigned int argb = *(unsigned int*)(source + 4 * i); 2469 2470 dest32[i] = (argb & 0xFF00FF00) | ((argb & 0x000000FF) << 16) | ((argb & 0x00FF0000) >> 16); 2471 } 2472 } 2473 else if(renderTarget->getExternalFormat() == sw::FORMAT_X8R8G8B8 && 2474 format == GL_RGBA && type == GL_UNSIGNED_BYTE) 2475 { 2476 for(int i = 0; i < rect.x1 - rect.x0; i++) 2477 { 2478 unsigned int xrgb = *(unsigned int*)(source + 4 * i); 2479 2480 dest32[i] = (xrgb & 0xFF00FF00) | ((xrgb & 0x000000FF) << 16) | ((xrgb & 0x00FF0000) >> 16) | 0xFF000000; 2481 } 2482 } 2483 else if(renderTarget->getExternalFormat() == sw::FORMAT_X8R8G8B8 && 2484 format == GL_BGRA_EXT && type == GL_UNSIGNED_BYTE) 2485 { 2486 for(int i = 0; i < rect.x1 - rect.x0; i++) 2487 { 2488 unsigned int xrgb = *(unsigned int*)(source + 4 * i); 2489 2490 dest32[i] = xrgb | 0xFF000000; 2491 } 2492 } 2493 else if(renderTarget->getExternalFormat() == sw::FORMAT_A8R8G8B8 && 2494 format == GL_BGRA_EXT && type == GL_UNSIGNED_BYTE) 2495 { 2496 memcpy(dest, source, (rect.x1 - rect.x0) * 4); 2497 } 2498 else if(renderTarget->getExternalFormat() == sw::FORMAT_A1R5G5B5 && 2499 format == GL_BGRA_EXT && type == GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT) 2500 { 2501 memcpy(dest, source, (rect.x1 - rect.x0) * 2); 2502 } 2503 else if(renderTarget->getExternalFormat() == sw::FORMAT_R5G6B5 && 2504 format == 0x80E0 && type == GL_UNSIGNED_SHORT_5_6_5) // GL_BGR_EXT 2505 { 2506 memcpy(dest, source, (rect.x1 - rect.x0) * 2); 2507 } 2508 else 2509 { 2510 for(int i = 0; i < rect.x1 - rect.x0; i++) 2511 { 2512 float r; 2513 float g; 2514 float b; 2515 float a; 2516 2517 switch(renderTarget->getExternalFormat()) 2518 { 2519 case sw::FORMAT_R5G6B5: 2520 { 2521 unsigned short rgb = *(unsigned short*)(source + 2 * i); 2522 2523 a = 1.0f; 2524 b = (rgb & 0x001F) * (1.0f / 0x001F); 2525 g = (rgb & 0x07E0) * (1.0f / 0x07E0); 2526 r = (rgb & 0xF800) * (1.0f / 0xF800); 2527 } 2528 break; 2529 case sw::FORMAT_A1R5G5B5: 2530 { 2531 unsigned short argb = *(unsigned short*)(source + 2 * i); 2532 2533 a = (argb & 0x8000) ? 1.0f : 0.0f; 2534 b = (argb & 0x001F) * (1.0f / 0x001F); 2535 g = (argb & 0x03E0) * (1.0f / 0x03E0); 2536 r = (argb & 0x7C00) * (1.0f / 0x7C00); 2537 } 2538 break; 2539 case sw::FORMAT_A8R8G8B8: 2540 { 2541 unsigned int argb = *(unsigned int*)(source + 4 * i); 2542 2543 a = (argb & 0xFF000000) * (1.0f / 0xFF000000); 2544 b = (argb & 0x000000FF) * (1.0f / 0x000000FF); 2545 g = (argb & 0x0000FF00) * (1.0f / 0x0000FF00); 2546 r = (argb & 0x00FF0000) * (1.0f / 0x00FF0000); 2547 } 2548 break; 2549 case sw::FORMAT_A8B8G8R8: 2550 { 2551 unsigned int abgr = *(unsigned int*)(source + 4 * i); 2552 2553 a = (abgr & 0xFF000000) * (1.0f / 0xFF000000); 2554 b = (abgr & 0x00FF0000) * (1.0f / 0x00FF0000); 2555 g = (abgr & 0x0000FF00) * (1.0f / 0x0000FF00); 2556 r = (abgr & 0x000000FF) * (1.0f / 0x000000FF); 2557 } 2558 break; 2559 case sw::FORMAT_X8R8G8B8: 2560 { 2561 unsigned int xrgb = *(unsigned int*)(source + 4 * i); 2562 2563 a = 1.0f; 2564 b = (xrgb & 0x000000FF) * (1.0f / 0x000000FF); 2565 g = (xrgb & 0x0000FF00) * (1.0f / 0x0000FF00); 2566 r = (xrgb & 0x00FF0000) * (1.0f / 0x00FF0000); 2567 } 2568 break; 2569 case sw::FORMAT_X8B8G8R8: 2570 { 2571 unsigned int xbgr = *(unsigned int*)(source + 4 * i); 2572 2573 a = 1.0f; 2574 b = (xbgr & 0x00FF0000) * (1.0f / 0x00FF0000); 2575 g = (xbgr & 0x0000FF00) * (1.0f / 0x0000FF00); 2576 r = (xbgr & 0x000000FF) * (1.0f / 0x000000FF); 2577 } 2578 break; 2579 case sw::FORMAT_A2R10G10B10: 2580 { 2581 unsigned int argb = *(unsigned int*)(source + 4 * i); 2582 2583 a = (argb & 0xC0000000) * (1.0f / 0xC0000000); 2584 b = (argb & 0x000003FF) * (1.0f / 0x000003FF); 2585 g = (argb & 0x000FFC00) * (1.0f / 0x000FFC00); 2586 r = (argb & 0x3FF00000) * (1.0f / 0x3FF00000); 2587 } 2588 break; 2589 default: 2590 UNIMPLEMENTED(); // FIXME 2591 UNREACHABLE(renderTarget->getExternalFormat()); 2592 } 2593 2594 switch(format) 2595 { 2596 case GL_RGBA: 2597 switch(type) 2598 { 2599 case GL_UNSIGNED_BYTE: 2600 dest[4 * i + 0] = (unsigned char)(255 * r + 0.5f); 2601 dest[4 * i + 1] = (unsigned char)(255 * g + 0.5f); 2602 dest[4 * i + 2] = (unsigned char)(255 * b + 0.5f); 2603 dest[4 * i + 3] = (unsigned char)(255 * a + 0.5f); 2604 break; 2605 default: UNREACHABLE(type); 2606 } 2607 break; 2608 case GL_BGRA_EXT: 2609 switch(type) 2610 { 2611 case GL_UNSIGNED_BYTE: 2612 dest[4 * i + 0] = (unsigned char)(255 * b + 0.5f); 2613 dest[4 * i + 1] = (unsigned char)(255 * g + 0.5f); 2614 dest[4 * i + 2] = (unsigned char)(255 * r + 0.5f); 2615 dest[4 * i + 3] = (unsigned char)(255 * a + 0.5f); 2616 break; 2617 case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT: 2618 // According to the desktop GL spec in the "Transfer of Pixel Rectangles" section 2619 // this type is packed as follows: 2620 // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 2621 // -------------------------------------------------------------------------------- 2622 // | 4th | 3rd | 2nd | 1st component | 2623 // -------------------------------------------------------------------------------- 2624 // in the case of BGRA_EXT, B is the first component, G the second, and so forth. 2625 dest16[i] = 2626 ((unsigned short)(15 * a + 0.5f) << 12)| 2627 ((unsigned short)(15 * r + 0.5f) << 8) | 2628 ((unsigned short)(15 * g + 0.5f) << 4) | 2629 ((unsigned short)(15 * b + 0.5f) << 0); 2630 break; 2631 case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT: 2632 // According to the desktop GL spec in the "Transfer of Pixel Rectangles" section 2633 // this type is packed as follows: 2634 // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 2635 // -------------------------------------------------------------------------------- 2636 // | 4th | 3rd | 2nd | 1st component | 2637 // -------------------------------------------------------------------------------- 2638 // in the case of BGRA_EXT, B is the first component, G the second, and so forth. 2639 dest16[i] = 2640 ((unsigned short)( a + 0.5f) << 15) | 2641 ((unsigned short)(31 * r + 0.5f) << 10) | 2642 ((unsigned short)(31 * g + 0.5f) << 5) | 2643 ((unsigned short)(31 * b + 0.5f) << 0); 2644 break; 2645 default: UNREACHABLE(type); 2646 } 2647 break; 2648 case GL_RGB: 2649 switch(type) 2650 { 2651 case GL_UNSIGNED_SHORT_5_6_5: 2652 dest16[i] = 2653 ((unsigned short)(31 * b + 0.5f) << 0) | 2654 ((unsigned short)(63 * g + 0.5f) << 5) | 2655 ((unsigned short)(31 * r + 0.5f) << 11); 2656 break; 2657 default: UNREACHABLE(type); 2658 } 2659 break; 2660 default: UNREACHABLE(format); 2661 } 2662 } 2663 } 2664 2665 source += inputPitch; 2666 dest += outputPitch; 2667 } 2668 2669 renderTarget->unlock(); 2670 renderTarget->release(); 2671} 2672 2673void Context::clear(GLbitfield mask) 2674{ 2675 Framebuffer *framebuffer = getFramebuffer(); 2676 2677 if(!framebuffer || framebuffer->completeness() != GL_FRAMEBUFFER_COMPLETE_OES) 2678 { 2679 return error(GL_INVALID_FRAMEBUFFER_OPERATION_OES); 2680 } 2681 2682 if(!applyRenderTarget()) 2683 { 2684 return; 2685 } 2686 2687 float depth = clamp01(mState.depthClearValue); 2688 int stencil = mState.stencilClearValue & 0x000000FF; 2689 2690 if(mask & GL_COLOR_BUFFER_BIT) 2691 { 2692 unsigned int rgbaMask = (mState.colorMaskRed ? 0x1 : 0) | 2693 (mState.colorMaskGreen ? 0x2 : 0) | 2694 (mState.colorMaskBlue ? 0x4 : 0) | 2695 (mState.colorMaskAlpha ? 0x8 : 0); 2696 2697 if(rgbaMask != 0) 2698 { 2699 device->clearColor(mState.colorClearValue.red, mState.colorClearValue.green, mState.colorClearValue.blue, mState.colorClearValue.alpha, rgbaMask); 2700 } 2701 } 2702 2703 if(mask & GL_DEPTH_BUFFER_BIT) 2704 { 2705 if(mState.depthMask != 0) 2706 { 2707 device->clearDepth(depth); 2708 } 2709 } 2710 2711 if(mask & GL_STENCIL_BUFFER_BIT) 2712 { 2713 if(mState.stencilWritemask != 0) 2714 { 2715 device->clearStencil(stencil, mState.stencilWritemask); 2716 } 2717 } 2718} 2719 2720void Context::drawArrays(GLenum mode, GLint first, GLsizei count) 2721{ 2722 sw::DrawType primitiveType; 2723 int primitiveCount; 2724 2725 if(!es2sw::ConvertPrimitiveType(mode, count, GL_NONE, primitiveType, primitiveCount)) 2726 return error(GL_INVALID_ENUM); 2727 2728 if(primitiveCount <= 0) 2729 { 2730 return; 2731 } 2732 2733 if(!applyRenderTarget()) 2734 { 2735 return; 2736 } 2737 2738 applyState(mode); 2739 2740 GLenum err = applyVertexBuffer(0, first, count); 2741 if(err != GL_NO_ERROR) 2742 { 2743 return error(err); 2744 } 2745 2746 applyTextures(); 2747 2748 if(!cullSkipsDraw(mode)) 2749 { 2750 device->drawPrimitive(primitiveType, primitiveCount); 2751 } 2752} 2753 2754void Context::drawElements(GLenum mode, GLsizei count, GLenum type, const void *indices) 2755{ 2756 if(!indices && !mState.elementArrayBuffer) 2757 { 2758 return error(GL_INVALID_OPERATION); 2759 } 2760 2761 sw::DrawType primitiveType; 2762 int primitiveCount; 2763 2764 if(!es2sw::ConvertPrimitiveType(mode, count, type, primitiveType, primitiveCount)) 2765 return error(GL_INVALID_ENUM); 2766 2767 if(primitiveCount <= 0) 2768 { 2769 return; 2770 } 2771 2772 if(!applyRenderTarget()) 2773 { 2774 return; 2775 } 2776 2777 applyState(mode); 2778 2779 TranslatedIndexData indexInfo; 2780 GLenum err = applyIndexBuffer(indices, count, mode, type, &indexInfo); 2781 if(err != GL_NO_ERROR) 2782 { 2783 return error(err); 2784 } 2785 2786 GLsizei vertexCount = indexInfo.maxIndex - indexInfo.minIndex + 1; 2787 err = applyVertexBuffer(-(int)indexInfo.minIndex, indexInfo.minIndex, vertexCount); 2788 if(err != GL_NO_ERROR) 2789 { 2790 return error(err); 2791 } 2792 2793 applyTextures(); 2794 2795 if(!cullSkipsDraw(mode)) 2796 { 2797 device->drawIndexedPrimitive(primitiveType, indexInfo.indexOffset, primitiveCount); 2798 } 2799} 2800 2801void Context::drawTexture(GLfloat x, GLfloat y, GLfloat z, GLfloat width, GLfloat height) 2802{ 2803 es1::Framebuffer *framebuffer = getFramebuffer(); 2804 es1::Renderbuffer *renderbuffer = framebuffer ? framebuffer->getColorbuffer() : nullptr; 2805 if(!renderbuffer) 2806 { 2807 return; 2808 } 2809 2810 float targetWidth = (float)renderbuffer->getWidth(); 2811 float targetHeight = (float)renderbuffer->getHeight(); 2812 float x0 = 2.0f * x / targetWidth - 1.0f; 2813 float y0 = 2.0f * y / targetHeight - 1.0f; 2814 float x1 = 2.0f * (x + width) / targetWidth - 1.0f; 2815 float y1 = 2.0f * (y + height) / targetHeight - 1.0f; 2816 float Zw = sw::clamp(mState.zNear + z * (mState.zFar - mState.zNear), mState.zNear, mState.zFar); 2817 2818 float vertices[][3] = {{x0, y0, Zw}, 2819 {x0, y1, Zw}, 2820 {x1, y0, Zw}, 2821 {x1, y1, Zw}}; 2822 2823 ASSERT(mState.samplerTexture[TEXTURE_2D][1].name() == 0); // Multi-texturing unimplemented 2824 es1::Texture *texture = getSamplerTexture(0, TEXTURE_2D); 2825 float textureWidth = (float)texture->getWidth(GL_TEXTURE_2D, 0); 2826 float textureHeight = (float)texture->getHeight(GL_TEXTURE_2D, 0); 2827 int Ucr = texture->getCropRectU(); 2828 int Vcr = texture->getCropRectV(); 2829 int Wcr = texture->getCropRectW(); 2830 int Hcr = texture->getCropRectH(); 2831 2832 float texCoords[][2] = {{Ucr / textureWidth, Vcr / textureHeight}, 2833 {Ucr / textureWidth, (Vcr + Hcr) / textureHeight}, 2834 {(Ucr + Wcr) / textureWidth, Vcr / textureHeight}, 2835 {(Ucr + Wcr) / textureWidth, (Vcr + Hcr) / textureHeight}}; 2836 2837 VertexAttribute oldPositionAttribute = mState.vertexAttribute[sw::Position]; 2838 VertexAttribute oldTexCoord0Attribute = mState.vertexAttribute[sw::TexCoord0]; 2839 gl::BindingPointer<Buffer> oldArrayBuffer = mState.arrayBuffer; 2840 mState.arrayBuffer = nullptr; 2841 2842 glVertexPointer(3, GL_FLOAT, 3 * sizeof(float), vertices); 2843 glEnableClientState(GL_VERTEX_ARRAY); 2844 glTexCoordPointer(2, GL_FLOAT, 2 * sizeof(float), texCoords); 2845 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 2846 2847 sw::Matrix P = projectionStack.current(); 2848 sw::Matrix M = modelViewStack.current(); 2849 sw::Matrix T = textureStack0.current(); 2850 2851 projectionStack.identity(); 2852 modelViewStack.identity(); 2853 textureStack0.identity(); 2854 2855 drawArrays(GL_TRIANGLE_STRIP, 0, 4); 2856 2857 // Restore state 2858 mState.vertexAttribute[sw::Position] = oldPositionAttribute; 2859 mState.vertexAttribute[sw::TexCoord0] = oldTexCoord0Attribute; 2860 mState.arrayBuffer = oldArrayBuffer; 2861 oldArrayBuffer = nullptr; 2862 oldPositionAttribute.mBoundBuffer = nullptr; 2863 oldTexCoord0Attribute.mBoundBuffer = nullptr; 2864 textureStack0.load(T); 2865 modelViewStack.load(M); 2866 projectionStack.load(P); 2867} 2868 2869void Context::blit(sw::Surface *source, const sw::SliceRect &sRect, sw::Surface *dest, const sw::SliceRect &dRect) 2870{ 2871 sw::SliceRectF sRectF((float)sRect.x0, (float)sRect.y0, (float)sRect.x1, (float)sRect.y1, sRect.slice); 2872 device->blit(source, sRectF, dest, dRect, false); 2873} 2874 2875void Context::finish() 2876{ 2877 device->finish(); 2878} 2879 2880void Context::flush() 2881{ 2882 // We don't queue anything without processing it as fast as possible 2883} 2884 2885void Context::recordInvalidEnum() 2886{ 2887 mInvalidEnum = true; 2888} 2889 2890void Context::recordInvalidValue() 2891{ 2892 mInvalidValue = true; 2893} 2894 2895void Context::recordInvalidOperation() 2896{ 2897 mInvalidOperation = true; 2898} 2899 2900void Context::recordOutOfMemory() 2901{ 2902 mOutOfMemory = true; 2903} 2904 2905void Context::recordInvalidFramebufferOperation() 2906{ 2907 mInvalidFramebufferOperation = true; 2908} 2909 2910void Context::recordMatrixStackOverflow() 2911{ 2912 mMatrixStackOverflow = true; 2913} 2914 2915void Context::recordMatrixStackUnderflow() 2916{ 2917 mMatrixStackUnderflow = true; 2918} 2919 2920// Get one of the recorded errors and clear its flag, if any. 2921// [OpenGL ES 2.0.24] section 2.5 page 13. 2922GLenum Context::getError() 2923{ 2924 if(mInvalidEnum) 2925 { 2926 mInvalidEnum = false; 2927 2928 return GL_INVALID_ENUM; 2929 } 2930 2931 if(mInvalidValue) 2932 { 2933 mInvalidValue = false; 2934 2935 return GL_INVALID_VALUE; 2936 } 2937 2938 if(mInvalidOperation) 2939 { 2940 mInvalidOperation = false; 2941 2942 return GL_INVALID_OPERATION; 2943 } 2944 2945 if(mOutOfMemory) 2946 { 2947 mOutOfMemory = false; 2948 2949 return GL_OUT_OF_MEMORY; 2950 } 2951 2952 if(mInvalidFramebufferOperation) 2953 { 2954 mInvalidFramebufferOperation = false; 2955 2956 return GL_INVALID_FRAMEBUFFER_OPERATION_OES; 2957 } 2958 2959 if(mMatrixStackOverflow) 2960 { 2961 mMatrixStackOverflow = false; 2962 2963 return GL_INVALID_FRAMEBUFFER_OPERATION_OES; 2964 } 2965 2966 if(mMatrixStackUnderflow) 2967 { 2968 mMatrixStackUnderflow = false; 2969 2970 return GL_INVALID_FRAMEBUFFER_OPERATION_OES; 2971 } 2972 2973 return GL_NO_ERROR; 2974} 2975 2976int Context::getSupportedMultisampleCount(int requested) 2977{ 2978 int supported = 0; 2979 2980 for(int i = NUM_MULTISAMPLE_COUNTS - 1; i >= 0; i--) 2981 { 2982 if(supported >= requested) 2983 { 2984 return supported; 2985 } 2986 2987 supported = multisampleCount[i]; 2988 } 2989 2990 return supported; 2991} 2992 2993void Context::detachBuffer(GLuint buffer) 2994{ 2995 // [OpenGL ES 2.0.24] section 2.9 page 22: 2996 // If a buffer object is deleted while it is bound, all bindings to that object in the current context 2997 // (i.e. in the thread that called Delete-Buffers) are reset to zero. 2998 2999 if(mState.arrayBuffer.name() == buffer) 3000 { 3001 mState.arrayBuffer = nullptr; 3002 } 3003 3004 if(mState.elementArrayBuffer.name() == buffer) 3005 { 3006 mState.elementArrayBuffer = nullptr; 3007 } 3008 3009 for(int attribute = 0; attribute < MAX_VERTEX_ATTRIBS; attribute++) 3010 { 3011 if(mState.vertexAttribute[attribute].mBoundBuffer.name() == buffer) 3012 { 3013 mState.vertexAttribute[attribute].mBoundBuffer = nullptr; 3014 } 3015 } 3016} 3017 3018void Context::detachTexture(GLuint texture) 3019{ 3020 // [OpenGL ES 2.0.24] section 3.8 page 84: 3021 // If a texture object is deleted, it is as if all texture units which are bound to that texture object are 3022 // rebound to texture object zero 3023 3024 for(int type = 0; type < TEXTURE_TYPE_COUNT; type++) 3025 { 3026 for(int sampler = 0; sampler < MAX_TEXTURE_UNITS; sampler++) 3027 { 3028 if(mState.samplerTexture[type][sampler].name() == texture) 3029 { 3030 mState.samplerTexture[type][sampler] = nullptr; 3031 } 3032 } 3033 } 3034 3035 // [OpenGL ES 2.0.24] section 4.4 page 112: 3036 // If a texture object is deleted while its image is attached to the currently bound framebuffer, then it is 3037 // as if FramebufferTexture2D had been called, with a texture of 0, for each attachment point to which this 3038 // image was attached in the currently bound framebuffer. 3039 3040 Framebuffer *framebuffer = getFramebuffer(); 3041 3042 if(framebuffer) 3043 { 3044 framebuffer->detachTexture(texture); 3045 } 3046} 3047 3048void Context::detachFramebuffer(GLuint framebuffer) 3049{ 3050 // [OpenGL ES 2.0.24] section 4.4 page 107: 3051 // If a framebuffer that is currently bound to the target FRAMEBUFFER is deleted, it is as though 3052 // BindFramebuffer had been executed with the target of FRAMEBUFFER and framebuffer of zero. 3053 3054 if(mState.framebuffer == framebuffer) 3055 { 3056 bindFramebuffer(0); 3057 } 3058} 3059 3060void Context::detachRenderbuffer(GLuint renderbuffer) 3061{ 3062 // [OpenGL ES 2.0.24] section 4.4 page 109: 3063 // If a renderbuffer that is currently bound to RENDERBUFFER is deleted, it is as though BindRenderbuffer 3064 // had been executed with the target RENDERBUFFER and name of zero. 3065 3066 if(mState.renderbuffer.name() == renderbuffer) 3067 { 3068 bindRenderbuffer(0); 3069 } 3070 3071 // [OpenGL ES 2.0.24] section 4.4 page 111: 3072 // If a renderbuffer object is deleted while its image is attached to the currently bound framebuffer, 3073 // then it is as if FramebufferRenderbuffer had been called, with a renderbuffer of 0, for each attachment 3074 // point to which this image was attached in the currently bound framebuffer. 3075 3076 Framebuffer *framebuffer = getFramebuffer(); 3077 3078 if(framebuffer) 3079 { 3080 framebuffer->detachRenderbuffer(renderbuffer); 3081 } 3082} 3083 3084bool Context::cullSkipsDraw(GLenum drawMode) 3085{ 3086 return mState.cullFaceEnabled && mState.cullMode == GL_FRONT_AND_BACK && isTriangleMode(drawMode); 3087} 3088 3089bool Context::isTriangleMode(GLenum drawMode) 3090{ 3091 switch(drawMode) 3092 { 3093 case GL_TRIANGLES: 3094 case GL_TRIANGLE_FAN: 3095 case GL_TRIANGLE_STRIP: 3096 return true; 3097 case GL_POINTS: 3098 case GL_LINES: 3099 case GL_LINE_LOOP: 3100 case GL_LINE_STRIP: 3101 return false; 3102 default: UNREACHABLE(drawMode); 3103 } 3104 3105 return false; 3106} 3107 3108void Context::setVertexAttrib(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w) 3109{ 3110 ASSERT(index < MAX_VERTEX_ATTRIBS); 3111 3112 mState.vertexAttribute[index].mCurrentValue[0] = x; 3113 mState.vertexAttribute[index].mCurrentValue[1] = y; 3114 mState.vertexAttribute[index].mCurrentValue[2] = z; 3115 mState.vertexAttribute[index].mCurrentValue[3] = w; 3116 3117 mVertexDataManager->dirtyCurrentValue(index); 3118} 3119 3120void Context::bindTexImage(gl::Surface *surface) 3121{ 3122 es1::Texture2D *textureObject = getTexture2D(); 3123 3124 if(textureObject) 3125 { 3126 textureObject->bindTexImage(surface); 3127 } 3128} 3129 3130EGLenum Context::validateSharedImage(EGLenum target, GLuint name, GLuint textureLevel) 3131{ 3132 switch(target) 3133 { 3134 case EGL_GL_TEXTURE_2D_KHR: 3135 break; 3136 case EGL_GL_RENDERBUFFER_KHR: 3137 break; 3138 default: 3139 return EGL_BAD_PARAMETER; 3140 } 3141 3142 if(textureLevel >= IMPLEMENTATION_MAX_TEXTURE_LEVELS) 3143 { 3144 return EGL_BAD_MATCH; 3145 } 3146 3147 if(target == EGL_GL_TEXTURE_2D_KHR) 3148 { 3149 Texture *texture = getTexture(name); 3150 3151 if(!texture || texture->getTarget() != GL_TEXTURE_2D) 3152 { 3153 return EGL_BAD_PARAMETER; 3154 } 3155 3156 if(texture->isShared(GL_TEXTURE_2D, textureLevel)) // Bound to an EGLSurface or already an EGLImage sibling 3157 { 3158 return EGL_BAD_ACCESS; 3159 } 3160 3161 if(textureLevel != 0 && !texture->isSamplerComplete()) 3162 { 3163 return EGL_BAD_PARAMETER; 3164 } 3165 3166 if(textureLevel == 0 && !(texture->isSamplerComplete() && texture->getTopLevel() == 0)) 3167 { 3168 return EGL_BAD_PARAMETER; 3169 } 3170 } 3171 else if(target == EGL_GL_RENDERBUFFER_KHR) 3172 { 3173 Renderbuffer *renderbuffer = getRenderbuffer(name); 3174 3175 if(!renderbuffer) 3176 { 3177 return EGL_BAD_PARAMETER; 3178 } 3179 3180 if(renderbuffer->isShared()) // Already an EGLImage sibling 3181 { 3182 return EGL_BAD_ACCESS; 3183 } 3184 } 3185 else UNREACHABLE(target); 3186 3187 return EGL_SUCCESS; 3188} 3189 3190egl::Image *Context::createSharedImage(EGLenum target, GLuint name, GLuint textureLevel) 3191{ 3192 if(target == EGL_GL_TEXTURE_2D_KHR) 3193 { 3194 es1::Texture *texture = getTexture(name); 3195 3196 return texture->createSharedImage(GL_TEXTURE_2D, textureLevel); 3197 } 3198 else if(target == EGL_GL_RENDERBUFFER_KHR) 3199 { 3200 es1::Renderbuffer *renderbuffer = getRenderbuffer(name); 3201 3202 return renderbuffer->createSharedImage(); 3203 } 3204 else UNREACHABLE(target); 3205 3206 return nullptr; 3207} 3208 3209egl::Image *Context::getSharedImage(GLeglImageOES image) 3210{ 3211 return display->getSharedImage(image); 3212} 3213 3214Device *Context::getDevice() 3215{ 3216 return device; 3217} 3218 3219void Context::setMatrixMode(GLenum mode) 3220{ 3221 matrixMode = mode; 3222} 3223 3224sw::MatrixStack &Context::currentMatrixStack() 3225{ 3226 switch(matrixMode) 3227 { 3228 case GL_MODELVIEW: 3229 return modelViewStack; 3230 case GL_PROJECTION: 3231 return projectionStack; 3232 case GL_TEXTURE: 3233 switch(mState.activeSampler) 3234 { 3235 case 0: return textureStack0; 3236 case 1: return textureStack1; 3237 } 3238 break; 3239 } 3240 3241 UNREACHABLE(matrixMode); 3242 return textureStack0; 3243} 3244 3245void Context::loadIdentity() 3246{ 3247 currentMatrixStack().identity(); 3248} 3249 3250void Context::load(const GLfloat *m) 3251{ 3252 currentMatrixStack().load(m); 3253} 3254 3255void Context::pushMatrix() 3256{ 3257 if(!currentMatrixStack().push()) 3258 { 3259 return error(GL_STACK_OVERFLOW); 3260 } 3261} 3262 3263void Context::popMatrix() 3264{ 3265 if(!currentMatrixStack().pop()) 3266 { 3267 return error(GL_STACK_OVERFLOW); 3268 } 3269} 3270 3271void Context::rotate(GLfloat angle, GLfloat x, GLfloat y, GLfloat z) 3272{ 3273 currentMatrixStack().rotate(angle, x, y, z); 3274} 3275 3276void Context::translate(GLfloat x, GLfloat y, GLfloat z) 3277{ 3278 currentMatrixStack().translate(x, y, z); 3279} 3280 3281void Context::scale(GLfloat x, GLfloat y, GLfloat z) 3282{ 3283 currentMatrixStack().scale(x, y, z); 3284} 3285 3286void Context::multiply(const GLfloat *m) 3287{ 3288 currentMatrixStack().multiply(m); 3289} 3290 3291void Context::frustum(GLfloat left, GLfloat right, GLfloat bottom, GLfloat top, GLfloat zNear, GLfloat zFar) 3292{ 3293 currentMatrixStack().frustum(left, right, bottom, top, zNear, zFar); 3294} 3295 3296void Context::ortho(GLfloat left, GLfloat right, GLfloat bottom, GLfloat top, GLfloat zNear, GLfloat zFar) 3297{ 3298 currentMatrixStack().ortho(left, right, bottom, top, zNear, zFar); 3299} 3300 3301void Context::setClipPlane(int index, const float plane[4]) 3302{ 3303 sw::Plane clipPlane = modelViewStack.current() * sw::Plane(plane); 3304 device->setClipPlane(index, &clipPlane.A); 3305} 3306 3307void Context::setClipPlaneEnabled(int index, bool enable) 3308{ 3309 clipFlags = (clipFlags & ~((int)!enable << index)) | ((int)enable << index); 3310 device->setClipFlags(clipFlags); 3311} 3312 3313bool Context::isClipPlaneEnabled(int index) const 3314{ 3315 return (clipFlags & (1 << index)) != 0; 3316} 3317 3318void Context::setColorLogicOpEnabled(bool enable) 3319{ 3320 colorLogicOpEnabled = enable; 3321} 3322 3323bool Context::isColorLogicOpEnabled() const 3324{ 3325 return colorLogicOpEnabled; 3326} 3327 3328void Context::setLogicalOperation(GLenum logicOp) 3329{ 3330 logicalOperation = logicOp; 3331} 3332 3333void Context::setLineSmoothEnabled(bool enable) 3334{ 3335 lineSmoothEnabled = enable; 3336} 3337 3338bool Context::isLineSmoothEnabled() const 3339{ 3340 return lineSmoothEnabled; 3341} 3342 3343void Context::setColorMaterialEnabled(bool enable) 3344{ 3345 colorMaterialEnabled = enable; 3346} 3347 3348bool Context::isColorMaterialEnabled() const 3349{ 3350 return colorMaterialEnabled; 3351} 3352 3353void Context::setNormalizeEnabled(bool enable) 3354{ 3355 normalizeEnabled = enable; 3356} 3357 3358bool Context::isNormalizeEnabled() const 3359{ 3360 return normalizeEnabled; 3361} 3362 3363void Context::setRescaleNormalEnabled(bool enable) 3364{ 3365 rescaleNormalEnabled = enable; 3366} 3367 3368bool Context::isRescaleNormalEnabled() const 3369{ 3370 return rescaleNormalEnabled; 3371} 3372 3373void Context::setVertexArrayEnabled(bool enable) 3374{ 3375 mState.vertexAttribute[sw::Position].mArrayEnabled = enable; 3376} 3377 3378bool Context::isVertexArrayEnabled() const 3379{ 3380 return mState.vertexAttribute[sw::Position].mArrayEnabled; 3381} 3382 3383void Context::setNormalArrayEnabled(bool enable) 3384{ 3385 mState.vertexAttribute[sw::Normal].mArrayEnabled = enable; 3386} 3387 3388bool Context::isNormalArrayEnabled() const 3389{ 3390 return mState.vertexAttribute[sw::Normal].mArrayEnabled; 3391} 3392 3393void Context::setColorArrayEnabled(bool enable) 3394{ 3395 mState.vertexAttribute[sw::Color0].mArrayEnabled = enable; 3396} 3397 3398bool Context::isColorArrayEnabled() const 3399{ 3400 return mState.vertexAttribute[sw::Color0].mArrayEnabled; 3401} 3402 3403void Context::setPointSizeArrayEnabled(bool enable) 3404{ 3405 mState.vertexAttribute[sw::PointSize].mArrayEnabled = enable; 3406} 3407 3408bool Context::isPointSizeArrayEnabled() const 3409{ 3410 return mState.vertexAttribute[sw::PointSize].mArrayEnabled; 3411} 3412 3413void Context::setTextureCoordArrayEnabled(bool enable) 3414{ 3415 mState.vertexAttribute[sw::TexCoord0 + clientTexture].mArrayEnabled = enable; 3416} 3417 3418bool Context::isTextureCoordArrayEnabled() const 3419{ 3420 return mState.vertexAttribute[sw::TexCoord0 + clientTexture].mArrayEnabled; 3421} 3422 3423void Context::setMultisampleEnabled(bool enable) 3424{ 3425 multisampleEnabled = enable; 3426} 3427 3428bool Context::isMultisampleEnabled() const 3429{ 3430 return multisampleEnabled; 3431} 3432 3433void Context::setSampleAlphaToOneEnabled(bool enable) 3434{ 3435 sampleAlphaToOneEnabled = enable; 3436} 3437 3438bool Context::isSampleAlphaToOneEnabled() const 3439{ 3440 return sampleAlphaToOneEnabled; 3441} 3442 3443void Context::setPointSpriteEnabled(bool enable) 3444{ 3445 pointSpriteEnabled = enable; 3446} 3447 3448bool Context::isPointSpriteEnabled() const 3449{ 3450 return pointSpriteEnabled; 3451} 3452 3453void Context::setPointSmoothEnabled(bool enable) 3454{ 3455 pointSmoothEnabled = enable; 3456} 3457 3458bool Context::isPointSmoothEnabled() const 3459{ 3460 return pointSmoothEnabled; 3461} 3462 3463void Context::setPointSizeMin(float min) 3464{ 3465 pointSizeMin = min; 3466} 3467 3468void Context::setPointSizeMax(float max) 3469{ 3470 pointSizeMax = max; 3471} 3472 3473void Context::setPointDistanceAttenuation(float a, float b, float c) 3474{ 3475 pointDistanceAttenuation = {a, b, c}; 3476} 3477 3478void Context::setPointFadeThresholdSize(float threshold) 3479{ 3480 pointFadeThresholdSize = threshold; 3481} 3482 3483void Context::clientActiveTexture(GLenum texture) 3484{ 3485 clientTexture = texture; 3486} 3487 3488GLenum Context::getClientActiveTexture() const 3489{ 3490 return clientTexture; 3491} 3492 3493unsigned int Context::getActiveTexture() const 3494{ 3495 return mState.activeSampler; 3496} 3497 3498} 3499 3500egl::Context *es1CreateContext(egl::Display *display, const egl::Context *shareContext, const egl::Config *config) 3501{ 3502 ASSERT(!shareContext || shareContext->getClientVersion() == 1); // Should be checked by eglCreateContext 3503 return new es1::Context(display, static_cast<const es1::Context*>(shareContext), config); 3504} 3505