st_cb_drawpixels.c revision 20c2debce82e36166ae0326a3fb94be42d71be4a
1/************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 /* 29 * Authors: 30 * Brian Paul 31 */ 32 33#include "main/imports.h" 34#include "main/image.h" 35#include "main/bufferobj.h" 36#include "main/macros.h" 37#include "main/pack.h" 38#include "main/texformat.h" 39#include "main/texstore.h" 40#include "program/program.h" 41#include "program/prog_print.h" 42#include "program/prog_instruction.h" 43 44#include "st_atom.h" 45#include "st_atom_constbuf.h" 46#include "st_cb_drawpixels.h" 47#include "st_cb_readpixels.h" 48#include "st_cb_fbo.h" 49#include "st_context.h" 50#include "st_debug.h" 51#include "st_format.h" 52#include "st_program.h" 53#include "st_texture.h" 54 55#include "pipe/p_context.h" 56#include "pipe/p_defines.h" 57#include "tgsi/tgsi_ureg.h" 58#include "util/u_draw_quad.h" 59#include "util/u_format.h" 60#include "util/u_inlines.h" 61#include "util/u_math.h" 62#include "util/u_tile.h" 63#include "cso_cache/cso_context.h" 64 65 66#if FEATURE_drawpix 67 68/** 69 * Check if the given program is: 70 * 0: MOVE result.color, fragment.color; 71 * 1: END; 72 */ 73static GLboolean 74is_passthrough_program(const struct gl_fragment_program *prog) 75{ 76 if (prog->Base.NumInstructions == 2) { 77 const struct prog_instruction *inst = prog->Base.Instructions; 78 if (inst[0].Opcode == OPCODE_MOV && 79 inst[1].Opcode == OPCODE_END && 80 inst[0].DstReg.File == PROGRAM_OUTPUT && 81 inst[0].DstReg.Index == FRAG_RESULT_COLOR && 82 inst[0].DstReg.WriteMask == WRITEMASK_XYZW && 83 inst[0].SrcReg[0].File == PROGRAM_INPUT && 84 inst[0].SrcReg[0].Index == FRAG_ATTRIB_COL0 && 85 inst[0].SrcReg[0].Swizzle == SWIZZLE_XYZW) { 86 return GL_TRUE; 87 } 88 } 89 return GL_FALSE; 90} 91 92 93 94/** 95 * Make fragment shader for glDraw/CopyPixels. This shader is made 96 * by combining the pixel transfer shader with the user-defined shader. 97 * \return pointer to Gallium driver fragment shader 98 */ 99static void * 100combined_drawpix_fragment_program(struct gl_context *ctx) 101{ 102 struct st_context *st = st_context(ctx); 103 struct st_fragment_program *stfp; 104 105 if (st->pixel_xfer.program->serialNo == st->pixel_xfer.xfer_prog_sn 106 && st->fp->serialNo == st->pixel_xfer.user_prog_sn) { 107 /* the pixel tranfer program has not changed and the user-defined 108 * program has not changed, so re-use the combined program. 109 */ 110 stfp = st->pixel_xfer.combined_prog; 111 } 112 else { 113 /* Concatenate the pixel transfer program with the current user- 114 * defined program. 115 */ 116 if (is_passthrough_program(&st->fp->Base)) { 117 stfp = (struct st_fragment_program *) 118 _mesa_clone_fragment_program(ctx, &st->pixel_xfer.program->Base); 119 } 120 else { 121#if 0 122 printf("Base program:\n"); 123 _mesa_print_program(&st->fp->Base.Base); 124 printf("DrawPix program:\n"); 125 _mesa_print_program(&st->pixel_xfer.program->Base.Base); 126#endif 127 stfp = (struct st_fragment_program *) 128 _mesa_combine_programs(ctx, 129 &st->pixel_xfer.program->Base.Base, 130 &st->fp->Base.Base); 131 } 132 133#if 0 134 { 135 struct gl_program *p = &stfp->Base.Base; 136 printf("Combined DrawPixels program:\n"); 137 _mesa_print_program(p); 138 printf("InputsRead: 0x%x\n", p->InputsRead); 139 printf("OutputsWritten: 0x%x\n", p->OutputsWritten); 140 _mesa_print_parameter_list(p->Parameters); 141 } 142#endif 143 144 /* translate to TGSI tokens */ 145 st_translate_fragment_program(st, stfp); 146 147 /* save new program, update serial numbers */ 148 st->pixel_xfer.xfer_prog_sn = st->pixel_xfer.program->serialNo; 149 st->pixel_xfer.user_prog_sn = st->fp->serialNo; 150 st->pixel_xfer.combined_prog_sn = stfp->serialNo; 151 /* can't reference new program directly, already have a reference on it */ 152 st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL); 153 st->pixel_xfer.combined_prog = stfp; 154 } 155 156 /* Ideally we'd have updated the pipe constants during the normal 157 * st/atom mechanism. But we can't since this is specific to glDrawPixels. 158 */ 159 st_upload_constants(st, stfp->Base.Base.Parameters, PIPE_SHADER_FRAGMENT); 160 161 return stfp->driver_shader; 162} 163 164 165/** 166 * Create fragment shader that does a TEX() instruction to get a Z and/or 167 * stencil value value, then writes to FRAG_RESULT_DEPTH/FRAG_RESULT_STENCIL. 168 * Used for glDrawPixels(GL_DEPTH_COMPONENT / GL_STENCIL_INDEX). 169 * Pass fragment color through as-is. 170 * \return pointer to the Gallium driver fragment shader 171 */ 172static void * 173make_fragment_shader_z_stencil(struct st_context *st, GLboolean write_depth, 174 GLboolean write_stencil) 175{ 176 struct gl_context *ctx = st->ctx; 177 struct gl_program *p; 178 struct st_fragment_program *stp; 179 GLuint ic = 0; 180 const GLuint shaderIndex = write_depth * 2 + write_stencil; 181 182 assert(shaderIndex < Elements(st->drawpix.shaders)); 183 184 if (st->drawpix.shaders[shaderIndex]) { 185 /* already have the proper shader */ 186 return st->drawpix.shaders[shaderIndex]->driver_shader; 187 } 188 189 /* 190 * Create shader now 191 */ 192 p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0); 193 if (!p) 194 return NULL; 195 196 p->NumInstructions = write_depth ? 2 : 1; 197 p->NumInstructions += write_stencil ? 1 : 0; 198 199 p->Instructions = _mesa_alloc_instructions(p->NumInstructions); 200 if (!p->Instructions) { 201 ctx->Driver.DeleteProgram(ctx, p); 202 return NULL; 203 } 204 _mesa_init_instructions(p->Instructions, p->NumInstructions); 205 206 if (write_depth) { 207 /* TEX result.depth, fragment.texcoord[0], texture[0], 2D; */ 208 p->Instructions[ic].Opcode = OPCODE_TEX; 209 p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT; 210 p->Instructions[ic].DstReg.Index = FRAG_RESULT_DEPTH; 211 p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Z; 212 p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; 213 p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; 214 p->Instructions[ic].TexSrcUnit = 0; 215 p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; 216 ic++; 217 } 218 219 if (write_stencil) { 220 /* TEX result.stencil, fragment.texcoord[0], texture[0], 2D; */ 221 p->Instructions[ic].Opcode = OPCODE_TEX; 222 p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT; 223 p->Instructions[ic].DstReg.Index = FRAG_RESULT_STENCIL; 224 p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Y; 225 p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT; 226 p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0; 227 p->Instructions[ic].TexSrcUnit = 1; 228 p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX; 229 ic++; 230 } 231 232 /* END; */ 233 p->Instructions[ic++].Opcode = OPCODE_END; 234 235 assert(ic == p->NumInstructions); 236 237 p->InputsRead = FRAG_BIT_TEX0 | FRAG_BIT_COL0; 238 p->OutputsWritten = 0; 239 if (write_depth) 240 p->OutputsWritten |= (1 << FRAG_RESULT_DEPTH); 241 if (write_stencil) 242 p->OutputsWritten |= (1 << FRAG_RESULT_STENCIL); 243 244 p->SamplersUsed = 0x1; /* sampler 0 (bit 0) is used */ 245 if (write_stencil) 246 p->SamplersUsed |= 1 << 1; 247 248 stp = st_fragment_program((struct gl_fragment_program *) p); 249 250 /* save the new shader */ 251 st->drawpix.shaders[shaderIndex] = stp; 252 253 st_translate_fragment_program(st, stp); 254 255 return stp->driver_shader; 256} 257 258 259 260/** 261 * Create a simple vertex shader that just passes through the 262 * vertex position and texcoord (and optionally, color). 263 */ 264static void * 265make_passthrough_vertex_shader(struct st_context *st, 266 GLboolean passColor) 267{ 268 if (!st->drawpix.vert_shaders[passColor]) { 269 struct ureg_program *ureg = ureg_create( TGSI_PROCESSOR_VERTEX ); 270 271 if (ureg == NULL) 272 return NULL; 273 274 /* MOV result.pos, vertex.pos; */ 275 ureg_MOV(ureg, 276 ureg_DECL_output( ureg, TGSI_SEMANTIC_POSITION, 0 ), 277 ureg_DECL_vs_input( ureg, 0 )); 278 279 /* MOV result.texcoord0, vertex.attr[1]; */ 280 ureg_MOV(ureg, 281 ureg_DECL_output( ureg, TGSI_SEMANTIC_GENERIC, 0 ), 282 ureg_DECL_vs_input( ureg, 1 )); 283 284 if (passColor) { 285 /* MOV result.color0, vertex.attr[2]; */ 286 ureg_MOV(ureg, 287 ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, 0 ), 288 ureg_DECL_vs_input( ureg, 2 )); 289 } 290 291 ureg_END( ureg ); 292 293 st->drawpix.vert_shaders[passColor] = 294 ureg_create_shader_and_destroy( ureg, st->pipe ); 295 } 296 297 return st->drawpix.vert_shaders[passColor]; 298} 299 300 301/** 302 * Return a texture base format for drawing/copying an image 303 * of the given format. 304 */ 305static GLenum 306base_format(GLenum format) 307{ 308 switch (format) { 309 case GL_DEPTH_COMPONENT: 310 return GL_DEPTH_COMPONENT; 311 case GL_DEPTH_STENCIL: 312 return GL_DEPTH_STENCIL; 313 case GL_STENCIL_INDEX: 314 return GL_STENCIL_INDEX; 315 default: 316 return GL_RGBA; 317 } 318} 319 320 321/** 322 * Return a texture internalFormat for drawing/copying an image 323 * of the given format and type. 324 */ 325static GLenum 326internal_format(GLenum format, GLenum type) 327{ 328 switch (format) { 329 case GL_DEPTH_COMPONENT: 330 return GL_DEPTH_COMPONENT; 331 case GL_DEPTH_STENCIL: 332 return GL_DEPTH_STENCIL; 333 case GL_STENCIL_INDEX: 334 return GL_STENCIL_INDEX; 335 default: 336 if (_mesa_is_integer_format(format)) { 337 switch (type) { 338 case GL_BYTE: 339 return GL_RGBA8I; 340 case GL_UNSIGNED_BYTE: 341 return GL_RGBA8UI; 342 case GL_SHORT: 343 return GL_RGBA16I; 344 case GL_UNSIGNED_SHORT: 345 return GL_RGBA16UI; 346 case GL_INT: 347 return GL_RGBA32I; 348 case GL_UNSIGNED_INT: 349 return GL_RGBA32UI; 350 default: 351 assert(0 && "Unexpected type in internal_format()"); 352 return GL_RGBA_INTEGER; 353 } 354 } 355 else { 356 return GL_RGBA; 357 } 358 } 359} 360 361 362/** 363 * Create a temporary texture to hold an image of the given size. 364 * If width, height are not POT and the driver only handles POT textures, 365 * allocate the next larger size of texture that is POT. 366 */ 367static struct pipe_resource * 368alloc_texture(struct st_context *st, GLsizei width, GLsizei height, 369 enum pipe_format texFormat) 370{ 371 struct pipe_resource *pt; 372 373 pt = st_texture_create(st, st->internal_target, texFormat, 0, 374 width, height, 1, PIPE_BIND_SAMPLER_VIEW); 375 376 return pt; 377} 378 379 380/** 381 * Make texture containing an image for glDrawPixels image. 382 * If 'pixels' is NULL, leave the texture image data undefined. 383 */ 384static struct pipe_resource * 385make_texture(struct st_context *st, 386 GLsizei width, GLsizei height, GLenum format, GLenum type, 387 const struct gl_pixelstore_attrib *unpack, 388 const GLvoid *pixels) 389{ 390 struct gl_context *ctx = st->ctx; 391 struct pipe_context *pipe = st->pipe; 392 gl_format mformat; 393 struct pipe_resource *pt; 394 enum pipe_format pipeFormat; 395 GLuint cpp; 396 GLenum baseFormat, intFormat; 397 398 baseFormat = base_format(format); 399 intFormat = internal_format(format, type); 400 401 mformat = st_ChooseTextureFormat_renderable(ctx, intFormat, 402 format, type, GL_FALSE); 403 assert(mformat); 404 405 pipeFormat = st_mesa_format_to_pipe_format(mformat); 406 assert(pipeFormat); 407 cpp = util_format_get_blocksize(pipeFormat); 408 409 pixels = _mesa_map_pbo_source(ctx, unpack, pixels); 410 if (!pixels) 411 return NULL; 412 413 /* alloc temporary texture */ 414 pt = alloc_texture(st, width, height, pipeFormat); 415 if (!pt) { 416 _mesa_unmap_pbo_source(ctx, unpack); 417 return NULL; 418 } 419 420 { 421 struct pipe_transfer *transfer; 422 static const GLuint dstImageOffsets = 0; 423 GLboolean success; 424 GLubyte *dest; 425 const GLbitfield imageTransferStateSave = ctx->_ImageTransferState; 426 427 /* we'll do pixel transfer in a fragment shader */ 428 ctx->_ImageTransferState = 0x0; 429 430 transfer = pipe_get_transfer(st->pipe, pt, 0, 0, 0, 431 PIPE_TRANSFER_WRITE, 0, 0, 432 width, height); 433 434 /* map texture transfer */ 435 dest = pipe_transfer_map(pipe, transfer); 436 437 438 /* Put image into texture transfer. 439 * Note that the image is actually going to be upside down in 440 * the texture. We deal with that with texcoords. 441 */ 442 success = _mesa_texstore(ctx, 2, /* dims */ 443 baseFormat, /* baseInternalFormat */ 444 mformat, /* gl_format */ 445 dest, /* dest */ 446 0, 0, 0, /* dstX/Y/Zoffset */ 447 transfer->stride, /* dstRowStride, bytes */ 448 &dstImageOffsets, /* dstImageOffsets */ 449 width, height, 1, /* size */ 450 format, type, /* src format/type */ 451 pixels, /* data source */ 452 unpack); 453 454 /* unmap */ 455 pipe_transfer_unmap(pipe, transfer); 456 pipe->transfer_destroy(pipe, transfer); 457 458 assert(success); 459 460 /* restore */ 461 ctx->_ImageTransferState = imageTransferStateSave; 462 } 463 464 _mesa_unmap_pbo_source(ctx, unpack); 465 466 return pt; 467} 468 469 470/** 471 * Draw quad with texcoords and optional color. 472 * Coords are gallium window coords with y=0=top. 473 * \param color may be null 474 * \param invertTex if true, flip texcoords vertically 475 */ 476static void 477draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z, 478 GLfloat x1, GLfloat y1, const GLfloat *color, 479 GLboolean invertTex, GLfloat maxXcoord, GLfloat maxYcoord) 480{ 481 struct st_context *st = st_context(ctx); 482 struct pipe_context *pipe = st->pipe; 483 GLfloat verts[4][3][4]; /* four verts, three attribs, XYZW */ 484 485 /* setup vertex data */ 486 { 487 const struct gl_framebuffer *fb = st->ctx->DrawBuffer; 488 const GLfloat fb_width = (GLfloat) fb->Width; 489 const GLfloat fb_height = (GLfloat) fb->Height; 490 const GLfloat clip_x0 = x0 / fb_width * 2.0f - 1.0f; 491 const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f; 492 const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f; 493 const GLfloat clip_y1 = y1 / fb_height * 2.0f - 1.0f; 494 const GLfloat sLeft = 0.0f, sRight = maxXcoord; 495 const GLfloat tTop = invertTex ? maxYcoord : 0.0f; 496 const GLfloat tBot = invertTex ? 0.0f : maxYcoord; 497 GLuint i; 498 499 /* upper-left */ 500 verts[0][0][0] = clip_x0; /* v[0].attr[0].x */ 501 verts[0][0][1] = clip_y0; /* v[0].attr[0].y */ 502 503 /* upper-right */ 504 verts[1][0][0] = clip_x1; 505 verts[1][0][1] = clip_y0; 506 507 /* lower-right */ 508 verts[2][0][0] = clip_x1; 509 verts[2][0][1] = clip_y1; 510 511 /* lower-left */ 512 verts[3][0][0] = clip_x0; 513 verts[3][0][1] = clip_y1; 514 515 verts[0][1][0] = sLeft; /* v[0].attr[1].S */ 516 verts[0][1][1] = tTop; /* v[0].attr[1].T */ 517 verts[1][1][0] = sRight; 518 verts[1][1][1] = tTop; 519 verts[2][1][0] = sRight; 520 verts[2][1][1] = tBot; 521 verts[3][1][0] = sLeft; 522 verts[3][1][1] = tBot; 523 524 /* same for all verts: */ 525 if (color) { 526 for (i = 0; i < 4; i++) { 527 verts[i][0][2] = z; /* v[i].attr[0].z */ 528 verts[i][0][3] = 1.0f; /* v[i].attr[0].w */ 529 verts[i][2][0] = color[0]; /* v[i].attr[2].r */ 530 verts[i][2][1] = color[1]; /* v[i].attr[2].g */ 531 verts[i][2][2] = color[2]; /* v[i].attr[2].b */ 532 verts[i][2][3] = color[3]; /* v[i].attr[2].a */ 533 verts[i][1][2] = 0.0f; /* v[i].attr[1].R */ 534 verts[i][1][3] = 1.0f; /* v[i].attr[1].Q */ 535 } 536 } 537 else { 538 for (i = 0; i < 4; i++) { 539 verts[i][0][2] = z; /*Z*/ 540 verts[i][0][3] = 1.0f; /*W*/ 541 verts[i][1][2] = 0.0f; /*R*/ 542 verts[i][1][3] = 1.0f; /*Q*/ 543 } 544 } 545 } 546 547 { 548 struct pipe_resource *buf; 549 550 /* allocate/load buffer object with vertex data */ 551 buf = pipe_buffer_create(pipe->screen, 552 PIPE_BIND_VERTEX_BUFFER, 553 sizeof(verts)); 554 pipe_buffer_write(st->pipe, buf, 0, sizeof(verts), verts); 555 556 util_draw_vertex_buffer(pipe, buf, 0, 557 PIPE_PRIM_QUADS, 558 4, /* verts */ 559 3); /* attribs/vert */ 560 pipe_resource_reference(&buf, NULL); 561 } 562} 563 564 565 566static void 567draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z, 568 GLsizei width, GLsizei height, 569 GLfloat zoomX, GLfloat zoomY, 570 struct pipe_sampler_view **sv, 571 int num_sampler_view, 572 void *driver_vp, 573 void *driver_fp, 574 const GLfloat *color, 575 GLboolean invertTex, 576 GLboolean write_depth, GLboolean write_stencil) 577{ 578 struct st_context *st = st_context(ctx); 579 struct pipe_context *pipe = st->pipe; 580 struct cso_context *cso = st->cso_context; 581 GLfloat x0, y0, x1, y1; 582 GLsizei maxSize; 583 boolean normalized = sv[0]->texture->target != PIPE_TEXTURE_RECT; 584 585 /* limit checks */ 586 /* XXX if DrawPixels image is larger than max texture size, break 587 * it up into chunks. 588 */ 589 maxSize = 1 << (pipe->screen->get_param(pipe->screen, 590 PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1); 591 assert(width <= maxSize); 592 assert(height <= maxSize); 593 594 cso_save_rasterizer(cso); 595 cso_save_viewport(cso); 596 cso_save_samplers(cso); 597 cso_save_fragment_sampler_views(cso); 598 cso_save_fragment_shader(cso); 599 cso_save_vertex_shader(cso); 600 cso_save_vertex_elements(cso); 601 if (write_stencil) { 602 cso_save_depth_stencil_alpha(cso); 603 cso_save_blend(cso); 604 } 605 606 /* rasterizer state: just scissor */ 607 { 608 struct pipe_rasterizer_state rasterizer; 609 memset(&rasterizer, 0, sizeof(rasterizer)); 610 rasterizer.gl_rasterization_rules = 1; 611 rasterizer.scissor = ctx->Scissor.Enabled; 612 cso_set_rasterizer(cso, &rasterizer); 613 } 614 615 if (write_stencil) { 616 /* Stencil writing bypasses the normal fragment pipeline to 617 * disable color writing and set stencil test to always pass. 618 */ 619 struct pipe_depth_stencil_alpha_state dsa; 620 struct pipe_blend_state blend; 621 622 /* depth/stencil */ 623 memset(&dsa, 0, sizeof(dsa)); 624 dsa.stencil[0].enabled = 1; 625 dsa.stencil[0].func = PIPE_FUNC_ALWAYS; 626 dsa.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff; 627 dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE; 628 if (write_depth) { 629 /* writing depth+stencil: depth test always passes */ 630 dsa.depth.enabled = 1; 631 dsa.depth.writemask = ctx->Depth.Mask; 632 dsa.depth.func = PIPE_FUNC_ALWAYS; 633 } 634 cso_set_depth_stencil_alpha(cso, &dsa); 635 636 /* blend (colormask) */ 637 memset(&blend, 0, sizeof(blend)); 638 cso_set_blend(cso, &blend); 639 } 640 641 /* fragment shader state: TEX lookup program */ 642 cso_set_fragment_shader_handle(cso, driver_fp); 643 644 /* vertex shader state: position + texcoord pass-through */ 645 cso_set_vertex_shader_handle(cso, driver_vp); 646 647 648 /* texture sampling state: */ 649 { 650 struct pipe_sampler_state sampler; 651 memset(&sampler, 0, sizeof(sampler)); 652 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP; 653 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP; 654 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP; 655 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 656 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 657 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 658 sampler.normalized_coords = normalized; 659 660 cso_single_sampler(cso, 0, &sampler); 661 if (num_sampler_view > 1) { 662 cso_single_sampler(cso, 1, &sampler); 663 } 664 cso_single_sampler_done(cso); 665 } 666 667 /* viewport state: viewport matching window dims */ 668 { 669 const float w = (float) ctx->DrawBuffer->Width; 670 const float h = (float) ctx->DrawBuffer->Height; 671 struct pipe_viewport_state vp; 672 vp.scale[0] = 0.5f * w; 673 vp.scale[1] = -0.5f * h; 674 vp.scale[2] = 0.5f; 675 vp.scale[3] = 1.0f; 676 vp.translate[0] = 0.5f * w; 677 vp.translate[1] = 0.5f * h; 678 vp.translate[2] = 0.5f; 679 vp.translate[3] = 0.0f; 680 cso_set_viewport(cso, &vp); 681 } 682 683 cso_set_vertex_elements(cso, 3, st->velems_util_draw); 684 685 /* texture state: */ 686 cso_set_fragment_sampler_views(cso, num_sampler_view, sv); 687 688 /* Compute Gallium window coords (y=0=top) with pixel zoom. 689 * Recall that these coords are transformed by the current 690 * vertex shader and viewport transformation. 691 */ 692 if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) { 693 y = ctx->DrawBuffer->Height - (int) (y + height * ctx->Pixel.ZoomY); 694 invertTex = !invertTex; 695 } 696 697 x0 = (GLfloat) x; 698 x1 = x + width * ctx->Pixel.ZoomX; 699 y0 = (GLfloat) y; 700 y1 = y + height * ctx->Pixel.ZoomY; 701 702 /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */ 703 z = z * 2.0 - 1.0; 704 705 draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex, 706 normalized ? ((GLfloat) width / sv[0]->texture->width0) : (GLfloat)width, 707 normalized ? ((GLfloat) height / sv[0]->texture->height0) : (GLfloat)height); 708 709 /* restore state */ 710 cso_restore_rasterizer(cso); 711 cso_restore_viewport(cso); 712 cso_restore_samplers(cso); 713 cso_restore_fragment_sampler_views(cso); 714 cso_restore_fragment_shader(cso); 715 cso_restore_vertex_shader(cso); 716 cso_restore_vertex_elements(cso); 717 if (write_stencil) { 718 cso_restore_depth_stencil_alpha(cso); 719 cso_restore_blend(cso); 720 } 721} 722 723 724/** 725 * Software fallback to do glDrawPixels(GL_STENCIL_INDEX) when we 726 * can't use a fragment shader to write stencil values. 727 */ 728static void 729draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y, 730 GLsizei width, GLsizei height, GLenum format, GLenum type, 731 const struct gl_pixelstore_attrib *unpack, 732 const GLvoid *pixels) 733{ 734 struct st_context *st = st_context(ctx); 735 struct pipe_context *pipe = st->pipe; 736 struct st_renderbuffer *strb; 737 enum pipe_transfer_usage usage; 738 struct pipe_transfer *pt; 739 const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0; 740 GLint skipPixels; 741 ubyte *stmap; 742 struct gl_pixelstore_attrib clippedUnpack = *unpack; 743 744 if (!zoom) { 745 if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height, 746 &clippedUnpack)) { 747 /* totally clipped */ 748 return; 749 } 750 } 751 752 strb = st_renderbuffer(ctx->DrawBuffer-> 753 Attachment[BUFFER_STENCIL].Renderbuffer); 754 755 if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { 756 y = ctx->DrawBuffer->Height - y - height; 757 } 758 759 if(format != GL_DEPTH_STENCIL && 760 util_format_get_component_bits(strb->format, 761 UTIL_FORMAT_COLORSPACE_ZS, 0) != 0) 762 usage = PIPE_TRANSFER_READ_WRITE; 763 else 764 usage = PIPE_TRANSFER_WRITE; 765 766 pt = pipe_get_transfer(st_context(ctx)->pipe, strb->texture, 0, 0, 0, 767 usage, x, y, 768 width, height); 769 770 stmap = pipe_transfer_map(pipe, pt); 771 772 pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels); 773 assert(pixels); 774 775 /* if width > MAX_WIDTH, have to process image in chunks */ 776 skipPixels = 0; 777 while (skipPixels < width) { 778 const GLint spanX = skipPixels; 779 const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH); 780 GLint row; 781 for (row = 0; row < height; row++) { 782 GLubyte sValues[MAX_WIDTH]; 783 GLuint zValues[MAX_WIDTH]; 784 GLenum destType = GL_UNSIGNED_BYTE; 785 const GLvoid *source = _mesa_image_address2d(&clippedUnpack, pixels, 786 width, height, 787 format, type, 788 row, skipPixels); 789 _mesa_unpack_stencil_span(ctx, spanWidth, destType, sValues, 790 type, source, &clippedUnpack, 791 ctx->_ImageTransferState); 792 793 if (format == GL_DEPTH_STENCIL) { 794 _mesa_unpack_depth_span(ctx, spanWidth, GL_UNSIGNED_INT, zValues, 795 (1 << 24) - 1, type, source, 796 &clippedUnpack); 797 } 798 799 if (zoom) { 800 _mesa_problem(ctx, "Gallium glDrawPixels(GL_STENCIL) with " 801 "zoom not complete"); 802 } 803 804 { 805 GLint spanY; 806 807 if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { 808 spanY = height - row - 1; 809 } 810 else { 811 spanY = row; 812 } 813 814 /* now pack the stencil (and Z) values in the dest format */ 815 switch (pt->resource->format) { 816 case PIPE_FORMAT_S8_USCALED: 817 { 818 ubyte *dest = stmap + spanY * pt->stride + spanX; 819 assert(usage == PIPE_TRANSFER_WRITE); 820 memcpy(dest, sValues, spanWidth); 821 } 822 break; 823 case PIPE_FORMAT_Z24_UNORM_S8_USCALED: 824 if (format == GL_DEPTH_STENCIL) { 825 uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); 826 GLint k; 827 assert(usage == PIPE_TRANSFER_WRITE); 828 for (k = 0; k < spanWidth; k++) { 829 dest[k] = zValues[k] | (sValues[k] << 24); 830 } 831 } 832 else { 833 uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); 834 GLint k; 835 assert(usage == PIPE_TRANSFER_READ_WRITE); 836 for (k = 0; k < spanWidth; k++) { 837 dest[k] = (dest[k] & 0xffffff) | (sValues[k] << 24); 838 } 839 } 840 break; 841 case PIPE_FORMAT_S8_USCALED_Z24_UNORM: 842 if (format == GL_DEPTH_STENCIL) { 843 uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); 844 GLint k; 845 assert(usage == PIPE_TRANSFER_WRITE); 846 for (k = 0; k < spanWidth; k++) { 847 dest[k] = (zValues[k] << 8) | (sValues[k] & 0xff); 848 } 849 } 850 else { 851 uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4); 852 GLint k; 853 assert(usage == PIPE_TRANSFER_READ_WRITE); 854 for (k = 0; k < spanWidth; k++) { 855 dest[k] = (dest[k] & 0xffffff00) | (sValues[k] & 0xff); 856 } 857 } 858 break; 859 default: 860 assert(0); 861 } 862 } 863 } 864 skipPixels += spanWidth; 865 } 866 867 _mesa_unmap_pbo_source(ctx, &clippedUnpack); 868 869 /* unmap the stencil buffer */ 870 pipe_transfer_unmap(pipe, pt); 871 pipe->transfer_destroy(pipe, pt); 872} 873 874 875/** 876 * Called via ctx->Driver.DrawPixels() 877 */ 878static void 879st_DrawPixels(struct gl_context *ctx, GLint x, GLint y, 880 GLsizei width, GLsizei height, 881 GLenum format, GLenum type, 882 const struct gl_pixelstore_attrib *unpack, const GLvoid *pixels) 883{ 884 void *driver_vp, *driver_fp; 885 struct st_context *st = st_context(ctx); 886 const GLfloat *color; 887 struct pipe_context *pipe = st->pipe; 888 GLboolean write_stencil = GL_FALSE, write_depth = GL_FALSE; 889 struct pipe_sampler_view *sv[2]; 890 int num_sampler_view = 1; 891 enum pipe_format stencil_format = PIPE_FORMAT_NONE; 892 893 if (format == GL_DEPTH_STENCIL) 894 write_stencil = write_depth = GL_TRUE; 895 else if (format == GL_STENCIL_INDEX) 896 write_stencil = GL_TRUE; 897 else if (format == GL_DEPTH_COMPONENT) 898 write_depth = GL_TRUE; 899 900 if (write_stencil) { 901 enum pipe_format tex_format; 902 /* can we write to stencil if not fallback */ 903 if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) 904 goto stencil_fallback; 905 906 tex_format = st_choose_format(st->pipe->screen, base_format(format), 907 PIPE_TEXTURE_2D, 908 0, PIPE_BIND_SAMPLER_VIEW); 909 if (tex_format == PIPE_FORMAT_Z24_UNORM_S8_USCALED) 910 stencil_format = PIPE_FORMAT_X24S8_USCALED; 911 else if (tex_format == PIPE_FORMAT_S8_USCALED_Z24_UNORM) 912 stencil_format = PIPE_FORMAT_S8X24_USCALED; 913 else 914 stencil_format = PIPE_FORMAT_S8_USCALED; 915 if (stencil_format == PIPE_FORMAT_NONE) 916 goto stencil_fallback; 917 } 918 919 /* Mesa state should be up to date by now */ 920 assert(ctx->NewState == 0x0); 921 922 st_validate_state(st); 923 924 if (write_depth || write_stencil) { 925 driver_fp = make_fragment_shader_z_stencil(st, write_depth, write_stencil); 926 driver_vp = make_passthrough_vertex_shader(st, GL_TRUE); 927 color = ctx->Current.RasterColor; 928 } 929 else { 930 driver_fp = combined_drawpix_fragment_program(ctx); 931 driver_vp = make_passthrough_vertex_shader(st, GL_FALSE); 932 color = NULL; 933 if (st->pixel_xfer.pixelmap_enabled) { 934 sv[1] = st->pixel_xfer.pixelmap_sampler_view; 935 num_sampler_view++; 936 } 937 } 938 939 /* draw with textured quad */ 940 { 941 struct pipe_resource *pt 942 = make_texture(st, width, height, format, type, unpack, pixels); 943 if (pt) { 944 sv[0] = st_create_texture_sampler_view(st->pipe, pt); 945 946 if (sv[0]) { 947 if (write_stencil) { 948 sv[1] = st_create_texture_sampler_view_format(st->pipe, pt, 949 stencil_format); 950 num_sampler_view++; 951 } 952 953 draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2], 954 width, height, 955 ctx->Pixel.ZoomX, ctx->Pixel.ZoomY, 956 sv, 957 num_sampler_view, 958 driver_vp, 959 driver_fp, 960 color, GL_FALSE, write_depth, write_stencil); 961 pipe_sampler_view_reference(&sv[0], NULL); 962 if (num_sampler_view > 1) 963 pipe_sampler_view_reference(&sv[1], NULL); 964 } 965 pipe_resource_reference(&pt, NULL); 966 } 967 } 968 return; 969 970stencil_fallback: 971 draw_stencil_pixels(ctx, x, y, width, height, format, type, 972 unpack, pixels); 973} 974 975 976 977/** 978 * Software fallback for glCopyPixels(GL_STENCIL). 979 */ 980static void 981copy_stencil_pixels(struct gl_context *ctx, GLint srcx, GLint srcy, 982 GLsizei width, GLsizei height, 983 GLint dstx, GLint dsty) 984{ 985 struct st_renderbuffer *rbDraw; 986 struct pipe_context *pipe = st_context(ctx)->pipe; 987 enum pipe_transfer_usage usage; 988 struct pipe_transfer *ptDraw; 989 ubyte *drawMap; 990 ubyte *buffer; 991 int i; 992 993 buffer = malloc(width * height * sizeof(ubyte)); 994 if (!buffer) { 995 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyPixels(stencil)"); 996 return; 997 } 998 999 /* Get the dest renderbuffer. If there's a wrapper, use the 1000 * underlying renderbuffer. 1001 */ 1002 rbDraw = st_renderbuffer(ctx->DrawBuffer->_StencilBuffer); 1003 if (rbDraw->Base.Wrapped) 1004 rbDraw = st_renderbuffer(rbDraw->Base.Wrapped); 1005 1006 /* this will do stencil pixel transfer ops */ 1007 st_read_stencil_pixels(ctx, srcx, srcy, width, height, 1008 GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, 1009 &ctx->DefaultPacking, buffer); 1010 1011 if (0) { 1012 /* debug code: dump stencil values */ 1013 GLint row, col; 1014 for (row = 0; row < height; row++) { 1015 printf("%3d: ", row); 1016 for (col = 0; col < width; col++) { 1017 printf("%02x ", buffer[col + row * width]); 1018 } 1019 printf("\n"); 1020 } 1021 } 1022 1023 if (util_format_get_component_bits(rbDraw->format, 1024 UTIL_FORMAT_COLORSPACE_ZS, 0) != 0) 1025 usage = PIPE_TRANSFER_READ_WRITE; 1026 else 1027 usage = PIPE_TRANSFER_WRITE; 1028 1029 if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { 1030 dsty = rbDraw->Base.Height - dsty - height; 1031 } 1032 1033 ptDraw = pipe_get_transfer(st_context(ctx)->pipe, 1034 rbDraw->texture, 0, 0, 0, 1035 usage, dstx, dsty, 1036 width, height); 1037 1038 assert(util_format_get_blockwidth(ptDraw->resource->format) == 1); 1039 assert(util_format_get_blockheight(ptDraw->resource->format) == 1); 1040 1041 /* map the stencil buffer */ 1042 drawMap = pipe_transfer_map(pipe, ptDraw); 1043 1044 /* draw */ 1045 /* XXX PixelZoom not handled yet */ 1046 for (i = 0; i < height; i++) { 1047 ubyte *dst; 1048 const ubyte *src; 1049 int y; 1050 1051 y = i; 1052 1053 if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) { 1054 y = height - y - 1; 1055 } 1056 1057 dst = drawMap + y * ptDraw->stride; 1058 src = buffer + i * width; 1059 1060 switch (ptDraw->resource->format) { 1061 case PIPE_FORMAT_Z24_UNORM_S8_USCALED: 1062 { 1063 uint *dst4 = (uint *) dst; 1064 int j; 1065 assert(usage == PIPE_TRANSFER_READ_WRITE); 1066 for (j = 0; j < width; j++) { 1067 *dst4 = (*dst4 & 0xffffff) | (src[j] << 24); 1068 dst4++; 1069 } 1070 } 1071 break; 1072 case PIPE_FORMAT_S8_USCALED_Z24_UNORM: 1073 { 1074 uint *dst4 = (uint *) dst; 1075 int j; 1076 assert(usage == PIPE_TRANSFER_READ_WRITE); 1077 for (j = 0; j < width; j++) { 1078 *dst4 = (*dst4 & 0xffffff00) | (src[j] & 0xff); 1079 dst4++; 1080 } 1081 } 1082 break; 1083 case PIPE_FORMAT_S8_USCALED: 1084 assert(usage == PIPE_TRANSFER_WRITE); 1085 memcpy(dst, src, width); 1086 break; 1087 default: 1088 assert(0); 1089 } 1090 } 1091 1092 free(buffer); 1093 1094 /* unmap the stencil buffer */ 1095 pipe_transfer_unmap(pipe, ptDraw); 1096 pipe->transfer_destroy(pipe, ptDraw); 1097} 1098 1099 1100static void 1101st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy, 1102 GLsizei width, GLsizei height, 1103 GLint dstx, GLint dsty, GLenum type) 1104{ 1105 struct st_context *st = st_context(ctx); 1106 struct pipe_context *pipe = st->pipe; 1107 struct pipe_screen *screen = pipe->screen; 1108 struct st_renderbuffer *rbRead; 1109 void *driver_vp, *driver_fp; 1110 struct pipe_resource *pt; 1111 struct pipe_sampler_view *sv[2]; 1112 int num_sampler_view = 1; 1113 GLfloat *color; 1114 enum pipe_format srcFormat, texFormat; 1115 GLboolean invertTex = GL_FALSE; 1116 GLint readX, readY, readW, readH; 1117 GLuint sample_count; 1118 struct gl_pixelstore_attrib pack = ctx->DefaultPacking; 1119 1120 st_validate_state(st); 1121 1122 if (type == GL_STENCIL) { 1123 /* can't use texturing to do stencil */ 1124 copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty); 1125 return; 1126 } 1127 1128 if (type == GL_COLOR) { 1129 rbRead = st_get_color_read_renderbuffer(ctx); 1130 color = NULL; 1131 driver_fp = combined_drawpix_fragment_program(ctx); 1132 driver_vp = make_passthrough_vertex_shader(st, GL_FALSE); 1133 if (st->pixel_xfer.pixelmap_enabled) { 1134 sv[1] = st->pixel_xfer.pixelmap_sampler_view; 1135 num_sampler_view++; 1136 } 1137 } 1138 else { 1139 assert(type == GL_DEPTH); 1140 rbRead = st_renderbuffer(ctx->ReadBuffer->_DepthBuffer); 1141 color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0]; 1142 driver_fp = make_fragment_shader_z_stencil(st, GL_TRUE, GL_FALSE); 1143 driver_vp = make_passthrough_vertex_shader(st, GL_TRUE); 1144 } 1145 1146 if (rbRead->Base.Wrapped) 1147 rbRead = st_renderbuffer(rbRead->Base.Wrapped); 1148 1149 sample_count = rbRead->texture->nr_samples; 1150 /* I believe this would be legal, presumably would need to do a resolve 1151 for color, and for depth/stencil spec says to just use one of the 1152 depth/stencil samples per pixel? Need some transfer clarifications. */ 1153 assert(sample_count < 2); 1154 1155 srcFormat = rbRead->texture->format; 1156 1157 if (screen->is_format_supported(screen, srcFormat, st->internal_target, 1158 sample_count, 1159 PIPE_BIND_SAMPLER_VIEW, 0)) { 1160 texFormat = srcFormat; 1161 } 1162 else { 1163 /* srcFormat can't be used as a texture format */ 1164 if (type == GL_DEPTH) { 1165 texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT, 1166 st->internal_target, sample_count, 1167 PIPE_BIND_DEPTH_STENCIL); 1168 assert(texFormat != PIPE_FORMAT_NONE); 1169 } 1170 else { 1171 /* default color format */ 1172 texFormat = st_choose_format(screen, GL_RGBA, st->internal_target, 1173 sample_count, PIPE_BIND_SAMPLER_VIEW); 1174 assert(texFormat != PIPE_FORMAT_NONE); 1175 } 1176 } 1177 1178 /* Invert src region if needed */ 1179 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1180 srcy = ctx->ReadBuffer->Height - srcy - height; 1181 invertTex = !invertTex; 1182 } 1183 1184 /* Clip the read region against the src buffer bounds. 1185 * We'll still allocate a temporary buffer/texture for the original 1186 * src region size but we'll only read the region which is on-screen. 1187 * This may mean that we draw garbage pixels into the dest region, but 1188 * that's expected. 1189 */ 1190 readX = srcx; 1191 readY = srcy; 1192 readW = width; 1193 readH = height; 1194 _mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack); 1195 readW = MAX2(0, readW); 1196 readH = MAX2(0, readH); 1197 1198 /* alloc temporary texture */ 1199 pt = alloc_texture(st, width, height, texFormat); 1200 if (!pt) 1201 return; 1202 1203 sv[0] = st_create_texture_sampler_view(st->pipe, pt); 1204 if (!sv[0]) { 1205 pipe_resource_reference(&pt, NULL); 1206 return; 1207 } 1208 1209 /* Make temporary texture which is a copy of the src region. 1210 */ 1211 if (srcFormat == texFormat) { 1212 struct pipe_subresource srcsub, dstsub; 1213 srcsub.face = 0; 1214 srcsub.level = 0; 1215 dstsub.face = 0; 1216 dstsub.level = 0; 1217 /* copy source framebuffer surface into mipmap/texture */ 1218 pipe->resource_copy_region(pipe, 1219 pt, /* dest tex */ 1220 dstsub, 1221 pack.SkipPixels, pack.SkipRows, 0, /* dest pos */ 1222 rbRead->texture, /* src tex */ 1223 srcsub, 1224 readX, readY, 0, readW, readH); /* src region */ 1225 1226 } 1227 else { 1228 /* CPU-based fallback/conversion */ 1229 struct pipe_transfer *ptRead = 1230 pipe_get_transfer(st->pipe, rbRead->texture, 0, 0, 0, 1231 PIPE_TRANSFER_READ, 1232 readX, readY, readW, readH); 1233 struct pipe_transfer *ptTex; 1234 enum pipe_transfer_usage transfer_usage; 1235 1236 if (ST_DEBUG & DEBUG_FALLBACK) 1237 debug_printf("%s: fallback processing\n", __FUNCTION__); 1238 1239 if (type == GL_DEPTH && util_format_is_depth_and_stencil(pt->format)) 1240 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1241 else 1242 transfer_usage = PIPE_TRANSFER_WRITE; 1243 1244 ptTex = pipe_get_transfer(st->pipe, pt, 0, 0, 0, transfer_usage, 1245 0, 0, width, height); 1246 1247 /* copy image from ptRead surface to ptTex surface */ 1248 if (type == GL_COLOR) { 1249 /* alternate path using get/put_tile() */ 1250 GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); 1251 pipe_get_tile_rgba(pipe, ptRead, readX, readY, readW, readH, buf); 1252 pipe_put_tile_rgba(pipe, ptTex, pack.SkipPixels, pack.SkipRows, 1253 readW, readH, buf); 1254 free(buf); 1255 } 1256 else { 1257 /* GL_DEPTH */ 1258 GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint)); 1259 pipe_get_tile_z(pipe, ptRead, readX, readY, readW, readH, buf); 1260 pipe_put_tile_z(pipe, ptTex, pack.SkipPixels, pack.SkipRows, 1261 readW, readH, buf); 1262 free(buf); 1263 } 1264 1265 pipe->transfer_destroy(pipe, ptRead); 1266 pipe->transfer_destroy(pipe, ptTex); 1267 } 1268 1269 /* OK, the texture 'pt' contains the src image/pixels. Now draw a 1270 * textured quad with that texture. 1271 */ 1272 draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2], 1273 width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY, 1274 sv, 1275 num_sampler_view, 1276 driver_vp, 1277 driver_fp, 1278 color, invertTex, GL_FALSE, GL_FALSE); 1279 1280 pipe_resource_reference(&pt, NULL); 1281 pipe_sampler_view_reference(&sv[0], NULL); 1282} 1283 1284 1285 1286void st_init_drawpixels_functions(struct dd_function_table *functions) 1287{ 1288 functions->DrawPixels = st_DrawPixels; 1289 functions->CopyPixels = st_CopyPixels; 1290} 1291 1292 1293void 1294st_destroy_drawpix(struct st_context *st) 1295{ 1296 GLuint i; 1297 1298 for (i = 0; i < Elements(st->drawpix.shaders); i++) { 1299 if (st->drawpix.shaders[i]) 1300 st_reference_fragprog(st, &st->drawpix.shaders[i], NULL); 1301 } 1302 1303 st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL); 1304 if (st->drawpix.vert_shaders[0]) 1305 ureg_free_tokens(st->drawpix.vert_shaders[0]); 1306 if (st->drawpix.vert_shaders[1]) 1307 ureg_free_tokens(st->drawpix.vert_shaders[1]); 1308} 1309 1310#endif /* FEATURE_drawpix */ 1311