dri_drawable.c revision 484edfc8151ddf63d3e0e7be3b4c8fa3906a0ec9
1/************************************************************************** 2 * 3 * Copyright 2009, VMware, Inc. 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 VMWARE 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 * Author: Keith Whitwell <keithw@vmware.com> 29 * Author: Jakob Bornecrantz <wallbraker@gmail.com> 30 */ 31 32#include "dri_screen.h" 33#include "dri_context.h" 34#include "dri_drawable.h" 35 36#include "pipe/p_screen.h" 37#include "util/u_format.h" 38#include "util/u_memory.h" 39#include "util/u_inlines.h" 40 41 42static boolean 43dri_st_framebuffer_validate(struct st_framebuffer_iface *stfbi, 44 const enum st_attachment_type *statts, 45 unsigned count, 46 struct pipe_resource **out) 47{ 48 struct dri_drawable *drawable = 49 (struct dri_drawable *) stfbi->st_manager_private; 50 struct dri_screen *screen = dri_screen(drawable->sPriv); 51 unsigned statt_mask, new_mask; 52 boolean new_stamp; 53 int i; 54 55 statt_mask = 0x0; 56 for (i = 0; i < count; i++) 57 statt_mask |= (1 << statts[i]); 58 59 /* record newly allocated textures */ 60 new_mask = (statt_mask & ~drawable->texture_mask); 61 62 /* 63 * dPriv->pStamp is the server stamp. It should be accessed with a lock, at 64 * least for DRI1. dPriv->lastStamp is the client stamp. It has the value 65 * of the server stamp when last checked. 66 */ 67 new_stamp = (drawable->texture_stamp != drawable->dPriv->lastStamp); 68 69 if (new_stamp || new_mask || screen->broken_invalidate) { 70 if (new_stamp && drawable->update_drawable_info) 71 drawable->update_drawable_info(drawable); 72 73 drawable->allocate_textures(drawable, statts, count); 74 75 /* add existing textures */ 76 for (i = 0; i < ST_ATTACHMENT_COUNT; i++) { 77 if (drawable->textures[i]) 78 statt_mask |= (1 << i); 79 } 80 81 drawable->texture_stamp = drawable->dPriv->lastStamp; 82 drawable->texture_mask = statt_mask; 83 } 84 85 if (!out) 86 return TRUE; 87 88 for (i = 0; i < count; i++) { 89 out[i] = NULL; 90 pipe_resource_reference(&out[i], drawable->textures[statts[i]]); 91 } 92 93 return TRUE; 94} 95 96static boolean 97dri_st_framebuffer_flush_front(struct st_framebuffer_iface *stfbi, 98 enum st_attachment_type statt) 99{ 100 struct dri_drawable *drawable = 101 (struct dri_drawable *) stfbi->st_manager_private; 102 103 /* XXX remove this and just set the correct one on the framebuffer */ 104 drawable->flush_frontbuffer(drawable, statt); 105 106 return TRUE; 107} 108 109/** 110 * This is called when we need to set up GL rendering to a new X window. 111 */ 112boolean 113dri_create_buffer(__DRIscreen * sPriv, 114 __DRIdrawable * dPriv, 115 const struct gl_config * visual, boolean isPixmap) 116{ 117 struct dri_screen *screen = sPriv->private; 118 struct dri_drawable *drawable = NULL; 119 120 if (isPixmap) 121 goto fail; /* not implemented */ 122 123 drawable = CALLOC_STRUCT(dri_drawable); 124 if (drawable == NULL) 125 goto fail; 126 127 dri_fill_st_visual(&drawable->stvis, screen, visual); 128 129 /* setup the st_framebuffer_iface */ 130 drawable->base.visual = &drawable->stvis; 131 drawable->base.flush_front = dri_st_framebuffer_flush_front; 132 drawable->base.validate = dri_st_framebuffer_validate; 133 drawable->base.st_manager_private = (void *) drawable; 134 135 drawable->sPriv = sPriv; 136 drawable->dPriv = dPriv; 137 dPriv->driverPrivate = (void *)drawable; 138 139 return GL_TRUE; 140fail: 141 FREE(drawable); 142 return GL_FALSE; 143} 144 145void 146dri_destroy_buffer(__DRIdrawable * dPriv) 147{ 148 struct dri_drawable *drawable = dri_drawable(dPriv); 149 int i; 150 151 pipe_surface_reference(&drawable->drisw_surface, NULL); 152 153 for (i = 0; i < ST_ATTACHMENT_COUNT; i++) 154 pipe_resource_reference(&drawable->textures[i], NULL); 155 156 FREE(drawable); 157} 158 159/** 160 * Validate the texture at an attachment. Allocate the texture if it does not 161 * exist. Used by the TFP extension. 162 */ 163static void 164dri_drawable_validate_att(struct dri_drawable *drawable, 165 enum st_attachment_type statt) 166{ 167 enum st_attachment_type statts[ST_ATTACHMENT_COUNT]; 168 unsigned i, count = 0; 169 170 /* check if buffer already exists */ 171 if (drawable->texture_mask & (1 << statt)) 172 return; 173 174 /* make sure DRI2 does not destroy existing buffers */ 175 for (i = 0; i < ST_ATTACHMENT_COUNT; i++) { 176 if (drawable->texture_mask & (1 << i)) { 177 statts[count++] = i; 178 } 179 } 180 statts[count++] = statt; 181 182 drawable->texture_stamp = drawable->dPriv->lastStamp - 1; 183 184 drawable->base.validate(&drawable->base, statts, count, NULL); 185} 186 187/** 188 * These are used for GLX_EXT_texture_from_pixmap 189 */ 190static void 191dri_set_tex_buffer2(__DRIcontext *pDRICtx, GLint target, 192 GLint format, __DRIdrawable *dPriv) 193{ 194 struct dri_context *ctx = dri_context(pDRICtx); 195 struct dri_drawable *drawable = dri_drawable(dPriv); 196 struct pipe_resource *pt; 197 198 dri_drawable_validate_att(drawable, ST_ATTACHMENT_FRONT_LEFT); 199 200 pt = drawable->textures[ST_ATTACHMENT_FRONT_LEFT]; 201 202 if (pt) { 203 enum pipe_format internal_format = pt->format; 204 205 if (format == __DRI_TEXTURE_FORMAT_RGB) { 206 /* only need to cover the formats recognized by dri_fill_st_visual */ 207 switch (internal_format) { 208 case PIPE_FORMAT_B8G8R8A8_UNORM: 209 internal_format = PIPE_FORMAT_B8G8R8X8_UNORM; 210 break; 211 case PIPE_FORMAT_A8R8G8B8_UNORM: 212 internal_format = PIPE_FORMAT_X8R8G8B8_UNORM; 213 break; 214 default: 215 break; 216 } 217 } 218 219 ctx->st->teximage(ctx->st, 220 (target == GL_TEXTURE_2D) ? ST_TEXTURE_2D : ST_TEXTURE_RECT, 221 0, internal_format, pt, FALSE); 222 } 223} 224 225static void 226dri_set_tex_buffer(__DRIcontext *pDRICtx, GLint target, 227 __DRIdrawable *dPriv) 228{ 229 dri_set_tex_buffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv); 230} 231 232const __DRItexBufferExtension driTexBufferExtension = { 233 { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION }, 234 dri_set_tex_buffer, 235 dri_set_tex_buffer2, 236 NULL, 237}; 238 239/** 240 * Get the format and binding of an attachment. 241 */ 242void 243dri_drawable_get_format(struct dri_drawable *drawable, 244 enum st_attachment_type statt, 245 enum pipe_format *format, 246 unsigned *bind) 247{ 248 switch (statt) { 249 case ST_ATTACHMENT_FRONT_LEFT: 250 case ST_ATTACHMENT_BACK_LEFT: 251 case ST_ATTACHMENT_FRONT_RIGHT: 252 case ST_ATTACHMENT_BACK_RIGHT: 253 *format = drawable->stvis.color_format; 254 *bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW; 255 break; 256 case ST_ATTACHMENT_DEPTH_STENCIL: 257 *format = drawable->stvis.depth_stencil_format; 258 *bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */ 259 break; 260 default: 261 *format = PIPE_FORMAT_NONE; 262 *bind = 0; 263 break; 264 } 265} 266 267/* vim: set sw=3 ts=8 sts=3 expandtab: */ 268