1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #include "main/mtypes.h"
29 #include "main/enums.h"
30 #include "main/image.h"
31 #include "main/teximage.h"
32 #include "main/texstate.h"
33 #include "main/mipmap.h"
35 #include "drivers/common/meta.h"
37 #include "intel_screen.h"
38 #include "intel_context.h"
39 #include "intel_buffers.h"
40 #include "intel_mipmap_tree.h"
41 #include "intel_regions.h"
42 #include "intel_fbo.h"
43 #include "intel_tex.h"
44 #include "intel_blit.h"
46 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
49 * Get the intel_region which is the source for any glCopyTex[Sub]Image call.
51 * Do the best we can using the blitter. A future project is to use
52 * the texture engine and fragment programs for these copies.
54 static const struct intel_region *
55 get_teximage_source(struct intel_context *intel, GLenum internalFormat)
57 struct intel_renderbuffer *irb;
59 DBG("%s %s\n", __FUNCTION__,
60 _mesa_lookup_enum_by_nr(internalFormat));
62 switch (internalFormat) {
63 case GL_DEPTH_COMPONENT:
64 case GL_DEPTH_COMPONENT16:
65 irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH);
66 if (irb && irb->region && irb->region->cpp == 2)
69 case GL_DEPTH24_STENCIL8_EXT:
70 case GL_DEPTH_STENCIL_EXT:
71 irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH);
72 if (irb && irb->region && irb->region->cpp == 4)
79 return intel_readbuf_region(intel);
87 do_copy_texsubimage(struct intel_context *intel,
89 struct intel_texture_image *intelImage,
90 GLenum internalFormat,
91 GLint dstx, GLint dsty,
92 GLint x, GLint y, GLsizei width, GLsizei height)
94 GLcontext *ctx = &intel->ctx;
95 const struct intel_region *src = get_teximage_source(intel, internalFormat);
97 if (!intelImage->mt || !src) {
98 if (INTEL_DEBUG & DEBUG_FALLBACKS)
99 fprintf(stderr, "%s fail %p %p (0x%08x)\n",
100 __FUNCTION__, intelImage->mt, src, internalFormat);
104 if (intelImage->mt->cpp != src->cpp) {
105 if (INTEL_DEBUG & DEBUG_FALLBACKS)
106 fprintf(stderr, "%s fail %d vs %d cpp\n",
107 __FUNCTION__, intelImage->mt->cpp, src->cpp);
111 /* intelFlush(ctx); */
113 drm_intel_bo *dst_bo = intel_region_buffer(intel,
114 intelImage->mt->region,
116 const GLint orig_x = x;
117 const GLint orig_y = y;
118 GLuint image_x, image_y;
121 /* get dest x/y in destination texture */
122 intel_miptree_get_image_offset(intelImage->mt,
127 /* Update dst for clipped src. Need to also clip the source rect. */
131 /* Can't blit to tiled buffers with non-tile-aligned offset. */
132 if (intelImage->mt->region->tiling == I915_TILING_Y) {
136 if (ctx->ReadBuffer->Name == 0) {
137 /* reading from a window, adjust x, y */
138 const __DRIdrawable *dPriv = intel->driReadDrawable;
139 y = dPriv->y + (dPriv->h - (y + height));
142 /* Invert the data coming from the source rectangle due to GL
143 * and hardware disagreeing on where y=0 is.
145 * It appears that our offsets and pitches get mangled
146 * appropriately by the hardware, and we don't need to adjust them
149 src_pitch = -src->pitch;
151 /* reading from a FBO, y is already oriented the way we like */
152 src_pitch = src->pitch;
155 /* blit from src buffer to texture */
156 if (!intelEmitCopyBlit(intel,
162 intelImage->mt->pitch,
165 intelImage->mt->region->tiling,
166 src->draw_x + x, src->draw_y + y,
167 image_x + dstx, image_y + dsty,
179 intelCopyTexImage1D(GLcontext * ctx, GLenum target, GLint level,
180 GLenum internalFormat,
181 GLint x, GLint y, GLsizei width, GLint border)
183 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
184 struct gl_texture_object *texObj =
185 _mesa_select_tex_object(ctx, texUnit, target);
186 struct gl_texture_image *texImage =
187 _mesa_select_tex_image(ctx, texObj, target, level);
188 int srcx, srcy, dstx, dsty, height;
193 /* Setup or redefine the texture object, mipmap tree and texture
194 * image. Don't populate yet.
196 ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
198 GL_RGBA, CHAN_TYPE, NULL,
199 &ctx->DefaultPacking, texObj, texImage);
205 if (!_mesa_clip_copytexsubimage(ctx,
211 if (!do_copy_texsubimage(intel_context(ctx), target,
212 intel_texture_image(texImage),
213 internalFormat, 0, 0, x, y, width, height))
219 if (INTEL_DEBUG & DEBUG_FALLBACKS)
220 fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
221 _mesa_meta_CopyTexImage1D(ctx, target, level, internalFormat, x, y,
227 intelCopyTexImage2D(GLcontext * ctx, GLenum target, GLint level,
228 GLenum internalFormat,
229 GLint x, GLint y, GLsizei width, GLsizei height,
232 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
233 struct gl_texture_object *texObj =
234 _mesa_select_tex_object(ctx, texUnit, target);
235 struct gl_texture_image *texImage =
236 _mesa_select_tex_image(ctx, texObj, target, level);
237 int srcx, srcy, dstx, dsty;
242 /* Setup or redefine the texture object, mipmap tree and texture
243 * image. Don't populate yet.
245 ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
246 width, height, border,
247 GL_RGBA, GL_UNSIGNED_BYTE, NULL,
248 &ctx->DefaultPacking, texObj, texImage);
254 if (!_mesa_clip_copytexsubimage(ctx,
260 if (!do_copy_texsubimage(intel_context(ctx), target,
261 intel_texture_image(texImage),
262 internalFormat, 0, 0, x, y, width, height))
268 if (INTEL_DEBUG & DEBUG_FALLBACKS)
269 fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
270 _mesa_meta_CopyTexImage2D(ctx, target, level, internalFormat, x, y,
271 width, height, border);
276 intelCopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level,
277 GLint xoffset, GLint x, GLint y, GLsizei width)
279 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
280 struct gl_texture_object *texObj =
281 _mesa_select_tex_object(ctx, texUnit, target);
282 struct gl_texture_image *texImage =
283 _mesa_select_tex_image(ctx, texObj, target, level);
284 GLenum internalFormat = texImage->InternalFormat;
286 /* XXX need to check <border> as in above function? */
288 /* Need to check texture is compatible with source format.
291 if (!do_copy_texsubimage(intel_context(ctx), target,
292 intel_texture_image(texImage),
293 internalFormat, xoffset, 0, x, y, width, 1)) {
294 if (INTEL_DEBUG & DEBUG_FALLBACKS)
295 fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
296 _mesa_meta_CopyTexSubImage1D(ctx, target, level, xoffset, x, y, width);
302 intelCopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
303 GLint xoffset, GLint yoffset,
304 GLint x, GLint y, GLsizei width, GLsizei height)
306 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
307 struct gl_texture_object *texObj =
308 _mesa_select_tex_object(ctx, texUnit, target);
309 struct gl_texture_image *texImage =
310 _mesa_select_tex_image(ctx, texObj, target, level);
311 GLenum internalFormat = texImage->InternalFormat;
313 /* Need to check texture is compatible with source format.
316 if (!do_copy_texsubimage(intel_context(ctx), target,
317 intel_texture_image(texImage),
319 xoffset, yoffset, x, y, width, height)) {
321 if (INTEL_DEBUG & DEBUG_FALLBACKS)
322 fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
323 _mesa_meta_CopyTexSubImage2D(ctx, target, level,
324 xoffset, yoffset, x, y, width, height);
330 intelInitTextureCopyImageFuncs(struct dd_function_table *functions)
332 functions->CopyTexImage1D = intelCopyTexImage1D;
333 functions->CopyTexImage2D = intelCopyTexImage2D;
334 functions->CopyTexSubImage1D = intelCopyTexSubImage1D;
335 functions->CopyTexSubImage2D = intelCopyTexSubImage2D;