diff options
author | Brian <[email protected]> | 2007-09-26 17:18:42 -0600 |
---|---|---|
committer | Brian <[email protected]> | 2007-09-26 17:18:42 -0600 |
commit | b27498c7cad7dae4e3b3ef9517b9c0aef58f73f6 (patch) | |
tree | 85207f16733db7de1c4392c79b4c8ea4786e156e /src | |
parent | b3bb1e3ebf260f18a2097a9a8fe8ab52f104dab1 (diff) |
checkpoint: glCopyTexImage work
Diffstat (limited to 'src')
-rw-r--r-- | src/mesa/state_tracker/st_cb_texture.c | 163 |
1 files changed, 73 insertions, 90 deletions
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c index 3ae9bd90030..ad9b52e21ab 100644 --- a/src/mesa/state_tracker/st_cb_texture.c +++ b/src/mesa/state_tracker/st_cb_texture.c @@ -37,6 +37,7 @@ #include "main/texstore.h" #include "state_tracker/st_context.h" +#include "state_tracker/st_cb_fbo.h" #include "state_tracker/st_cb_texture.h" #include "state_tracker/st_format.h" #include "state_tracker/st_mipmap_tree.h" @@ -1049,63 +1050,39 @@ st_TexSubImage1D(GLcontext * ctx, /** - * Get the pipe_region which is the source for any glCopyTex[Sub]Image call. - * - * Do the best we can using the blitter. A future project is to use - * the texture engine and fragment programs for these copies. + * Do a CopyTex[Sub]Image using an optimized hardware (blit) path. + * Note that the region to copy has already been clip tested. + * \return GL_TRUE if success, GL_FALSE if failure (use a fallback) */ -static const struct pipe_region * -get_teximage_source(GLcontext *ctx, GLenum internalFormat) -{ -#if 00 - struct intel_renderbuffer *irb; - - DBG("%s %s\n", __FUNCTION__, - _mesa_lookup_enum_by_nr(internalFormat)); - - switch (internalFormat) { - case GL_DEPTH_COMPONENT: - case GL_DEPTH_COMPONENT16_ARB: - irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH); - if (irb && irb->region && irb->region->cpp == 2) - return irb->region; - return NULL; - case GL_DEPTH24_STENCIL8_EXT: - case GL_DEPTH_STENCIL_EXT: - irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH); - if (irb && irb->region && irb->region->cpp == 4) - return irb->region; - return NULL; - case GL_RGBA: - case GL_RGBA8: - return intel_readbuf_region(intel); - case GL_RGB: - if (intel->intelScreen->front.cpp == 2) - return intel_readbuf_region(intel); - return NULL; - default: - return NULL; - } -#else - return NULL; -#endif -} - - static GLboolean do_copy_texsubimage(GLcontext *ctx, struct st_texture_image *stImage, - GLenum internalFormat, - GLint dstx, GLint dsty, - GLint x, GLint y, GLsizei width, GLsizei height) + GLenum baseFormat, + GLint destX, GLint destY, + GLint srcX, GLint srcY, GLsizei width, GLsizei height) { - const struct pipe_region *src = - get_teximage_source(ctx, internalFormat); + struct gl_framebuffer *fb = ctx->ReadBuffer; + struct st_renderbuffer *strb; + struct pipe_context *pipe = ctx->st->pipe; + struct pipe_region *src_region, *dest_region; + uint dest_offset, src_offset; + uint dest_format, src_format; - if (!stImage->mt || !src) { - DBG("%s fail %p %p\n", __FUNCTION__, (void *) stImage->mt, (void *) src); - return GL_FALSE; + /* determine if copying depth or color data */ + if (baseFormat == GL_DEPTH_COMPONENT) { + strb = st_renderbuffer(fb->_DepthBuffer); + } + else if (baseFormat == GL_DEPTH_STENCIL_EXT) { + strb = st_renderbuffer(fb->_StencilBuffer); } + else { + /* baseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ + strb = st_renderbuffer(fb->_ColorReadBuffer); + } + + assert(strb); + assert(strb->surface); + assert(stImage->mt); #if 00 /* XXX FIX flush/locking */ intelFlush(ctx); @@ -1113,49 +1090,55 @@ do_copy_texsubimage(GLcontext *ctx, LOCK_HARDWARE(intel); #endif - { - GLuint image_offset = st_miptree_image_offset(stImage->mt, - stImage->face, - stImage->level); - const GLint orig_x = x; - const GLint orig_y = y; - const struct gl_framebuffer *fb = ctx->DrawBuffer; - - if (_mesa_clip_to_region(fb->_Xmin, fb->_Ymin, fb->_Xmax, fb->_Ymax, - &x, &y, &width, &height)) { - /* Update dst for clipped src. Need to also clip the source rect. - */ - dstx += x - orig_x; - dsty += y - orig_y; + src_format = strb->surface->format; + dest_format = stImage->mt->format; + if (src_format != dest_format) + return GL_FALSE; - if (!(ctx->ReadBuffer->Name == 0)) { - /* XXX this looks bogus ? */ - /* FBO: invert Y */ - y = ctx->ReadBuffer->Height - y - 1; - } + src_region = strb->surface->region; + dest_region = stImage->mt->region; + if (!src_region || !dest_region) + return GL_FALSE; + if (src_region->cpp != dest_region->cpp) + return GL_FALSE; + + src_offset = 0; + dest_offset = st_miptree_image_offset(stImage->mt, + stImage->face, + stImage->level); + + /* XXX may need to invert image depending on window vs. user-created FBO */ - /* A bit of fiddling to get the blitter to work with -ve - * pitches. But we get a nice inverted blit this way, so it's - * worth it: - */ #if 0 - intelEmitCopyBlit(intel, - stImage->mt->cpp, - -src->pitch, - src->buffer, - src->height * src->pitch * src->cpp, - stImage->mt->pitch, - stImage->mt->region->buffer, - image_offset, - x, y + height, dstx, dsty, width, height, - GL_COPY); /* ? */ - intel_batchbuffer_flush(intel->batch); + /* A bit of fiddling to get the blitter to work with -ve + * pitches. But we get a nice inverted blit this way, so it's + * worth it: + */ + intelEmitCopyBlit(intel, + stImage->mt->cpp, + -src->pitch, + src->buffer, + src->height * src->pitch * src->cpp, + stImage->mt->pitch, + stImage->mt->region->buffer, + dest_offset, + x, y + height, dstx, dsty, width, height, + GL_COPY); /* ? */ + intel_batchbuffer_flush(intel->batch); #else - /* XXX use pipe->region_copy() ??? */ - (void) image_offset; + + pipe->region_copy(pipe, + /* dest */ + dest_region, + dest_offset, + destX, destY, + /* src */ + src_region, + src_offset, + srcX, srcY, + /* size */ + width, height); #endif - } - } #if 0 UNLOCK_HARDWARE(intel); @@ -1266,7 +1249,7 @@ st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, _mesa_select_tex_object(ctx, texUnit, target); struct gl_texture_image *texImage = _mesa_select_tex_image(ctx, texObj, target, level); - GLenum internalFormat = texImage->InternalFormat; + const GLenum baseFormat = texImage->TexFormat->BaseFormat; /* XXX need to check <border> as in above function? */ @@ -1275,7 +1258,7 @@ st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, if (!do_copy_texsubimage(ctx, st_texture_image(texImage), - internalFormat, xoffset, 0, x, y, width, 1)) { + baseFormat, xoffset, 0, x, y, width, 1)) { #if 0 _swrast_copy_texsubimage1d(ctx, target, level, xoffset, x, y, width); #endif |