diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/mesa/drivers/dri/intel/intel_pixel_copy.c | 104 |
1 files changed, 56 insertions, 48 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_pixel_copy.c b/src/mesa/drivers/dri/intel/intel_pixel_copy.c index 1b3cb5adcb7..61d1296c26c 100644 --- a/src/mesa/drivers/dri/intel/intel_pixel_copy.c +++ b/src/mesa/drivers/dri/intel/intel_pixel_copy.c @@ -260,6 +260,11 @@ do_blit_copypixels(GLcontext * ctx, struct intel_context *intel = intel_context(ctx); struct intel_region *dst = intel_drawbuf_region(intel); struct intel_region *src = copypix_src_region(intel, type); + struct gl_framebuffer *fb = ctx->DrawBuffer; + struct gl_framebuffer *read_fb = ctx->ReadBuffer; + unsigned int num_cliprects; + drm_clip_rect_t *cliprects; + int x_off, y_off; /* Copypixels can be more than a straight copy. Ensure all the * extra operations are disabled: @@ -277,71 +282,74 @@ do_blit_copypixels(GLcontext * ctx, LOCK_HARDWARE(intel); - if (intel->driDrawable->numClipRects) { - __DRIdrawablePrivate *dPriv = intel->driDrawable; - __DRIdrawablePrivate *dReadPriv = intel->driReadDrawable; - drm_clip_rect_t *box = dPriv->pClipRects; - GLint nbox = dPriv->numClipRects; - GLint delta_x = 0; - GLint delta_y = 0; + intel_get_cliprects(intel, &cliprects, &num_cliprects, &x_off, &y_off); + if (num_cliprects != 0) { + GLint delta_x; + GLint delta_y; + GLint orig_dstx; + GLint orig_dsty; + GLint orig_srcx; + GLint orig_srcy; GLuint i; - /* Do scissoring in GL coordinates: - */ - if (ctx->Scissor.Enabled) - { - GLint x = ctx->Scissor.X; - GLint y = ctx->Scissor.Y; - GLuint w = ctx->Scissor.Width; - GLuint h = ctx->Scissor.Height; - GLint dx = dstx - srcx; - GLint dy = dsty - srcy; - - if (!_mesa_clip_to_region(x, y, x+w-1, y+h-1, &dstx, &dsty, &width, &height)) - goto out; - - srcx = dstx - dx; - srcy = dsty - dy; - } + /* XXX: We fail to handle different inversion between read and draw framebuffer. */ + + /* Clip to destination buffer. */ + orig_dstx = dstx; + orig_dsty = dsty; + if (!_mesa_clip_to_region(fb->_Xmin, fb->_Ymin, + fb->_Xmax, fb->_Ymax, + &dstx, &dsty, &width, &height)) + goto out; + /* Adjust src coords for our post-clipped destination origin */ + srcx += dstx - orig_dstx; + srcy += dsty - orig_dsty; + + /* Clip to source buffer. */ + orig_srcx = srcx; + orig_srcy = srcy; + if (!_mesa_clip_to_region(read_fb->_Xmin, read_fb->_Ymin, + read_fb->_Xmax, read_fb->_Ymax, + &srcx, &srcy, &width, &height)) + goto out; + /* Adjust dst coords for our post-clipped source origin */ + dstx += srcx - orig_srcx; + dsty += srcy - orig_srcy; /* Convert from GL to hardware coordinates: */ - dsty = dPriv->h - dsty - height; - srcy = dPriv->h - srcy - height; - dstx += dPriv->x; - dsty += dPriv->y; - srcx += dReadPriv->x; - srcy += dReadPriv->y; - - /* Clip against the source region. This is the only source - * clipping we do. Dst is clipped with cliprects below. - */ - { - delta_x = srcx - dstx; - delta_y = srcy - dsty; - - if (!_mesa_clip_to_region(0, 0, src->pitch, src->height, - &srcx, &srcy, &width, &height)) - goto out; + if (fb->Name == 0) { + /* copypixels to a system framebuffer */ + dstx = x_off + dstx; + dsty = y_off + (fb->Height - dsty - height); + } else { + /* copypixels to a user framebuffer object */ + dstx = x_off + dstx; + dsty = y_off + dsty; + } - dstx = srcx - delta_x; - dsty = srcy - delta_y; + /* Flip source Y if it's a system framebuffer. */ + if (read_fb->Name == 0) { + srcx = intel->driReadDrawable->x + srcx; + srcy = intel->driReadDrawable->y + (fb->Height - srcy - height); } + delta_x = srcx - dstx; + delta_y = srcy - dsty; /* Could do slightly more clipping: Eg, take the intersection of - * the existing set of cliprects and those cliprects translated - * by delta_x, delta_y: - * + * the destination cliprects and the read drawable cliprects + * * This code will not overwrite other windows, but will * introduce garbage when copying from obscured window regions. */ - for (i = 0; i < nbox; i++) { + for (i = 0; i < num_cliprects; i++) { GLint clip_x = dstx; GLint clip_y = dsty; GLint clip_w = width; GLint clip_h = height; - if (!_mesa_clip_to_region(box[i].x1, box[i].y1, box[i].x2, box[i].y2, + if (!_mesa_clip_to_region(cliprects[i].x1, cliprects[i].y1, + cliprects[i].x2, cliprects[i].y2, &clip_x, &clip_y, &clip_w, &clip_h)) continue; |