| /* |
| * Copyright 2003 VMware, Inc. |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sublicense, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #include "main/image.h" |
| #include "main/state.h" |
| #include "main/mtypes.h" |
| #include "main/condrender.h" |
| #include "main/fbobject.h" |
| #include "drivers/common/meta.h" |
| |
| #include "brw_context.h" |
| #include "intel_buffers.h" |
| #include "intel_mipmap_tree.h" |
| #include "intel_pixel.h" |
| #include "intel_fbo.h" |
| #include "intel_blit.h" |
| #include "intel_batchbuffer.h" |
| |
| #define FILE_DEBUG_FLAG DEBUG_PIXEL |
| |
| /** |
| * CopyPixels with the blitter. Don't support zooming, pixel transfer, etc. |
| */ |
| static bool |
| do_blit_copypixels(struct gl_context * ctx, |
| GLint srcx, GLint srcy, |
| GLsizei width, GLsizei height, |
| GLint dstx, GLint dsty, GLenum type) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct gl_framebuffer *fb = ctx->DrawBuffer; |
| struct gl_framebuffer *read_fb = ctx->ReadBuffer; |
| GLint orig_dstx; |
| GLint orig_dsty; |
| GLint orig_srcx; |
| GLint orig_srcy; |
| struct intel_renderbuffer *draw_irb = NULL; |
| struct intel_renderbuffer *read_irb = NULL; |
| |
| /* Update draw buffer bounds */ |
| _mesa_update_state(ctx); |
| |
| intel_prepare_render(brw); |
| |
| switch (type) { |
| case GL_COLOR: |
| if (fb->_NumColorDrawBuffers != 1) { |
| perf_debug("glCopyPixels() fallback: MRT\n"); |
| return false; |
| } |
| |
| draw_irb = intel_renderbuffer(fb->_ColorDrawBuffers[0]); |
| read_irb = intel_renderbuffer(read_fb->_ColorReadBuffer); |
| break; |
| case GL_DEPTH_STENCIL_EXT: |
| draw_irb = intel_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer); |
| read_irb = |
| intel_renderbuffer(read_fb->Attachment[BUFFER_DEPTH].Renderbuffer); |
| break; |
| case GL_DEPTH: |
| perf_debug("glCopyPixels() fallback: GL_DEPTH\n"); |
| return false; |
| case GL_STENCIL: |
| perf_debug("glCopyPixels() fallback: GL_STENCIL\n"); |
| return false; |
| default: |
| perf_debug("glCopyPixels(): Unknown type\n"); |
| return false; |
| } |
| |
| if (!draw_irb) { |
| perf_debug("glCopyPixels() fallback: missing draw buffer\n"); |
| return false; |
| } |
| |
| if (!read_irb) { |
| perf_debug("glCopyPixels() fallback: missing read buffer\n"); |
| return false; |
| } |
| |
| if (draw_irb->mt->num_samples > 1 || read_irb->mt->num_samples > 1) { |
| perf_debug("glCopyPixels() fallback: multisampled buffers\n"); |
| return false; |
| } |
| |
| if (ctx->_ImageTransferState) { |
| perf_debug("glCopyPixels(): Unsupported image transfer state\n"); |
| return false; |
| } |
| |
| if (ctx->Depth.Test) { |
| perf_debug("glCopyPixels(): Unsupported depth test state\n"); |
| return false; |
| } |
| |
| if (ctx->Stencil._Enabled) { |
| perf_debug("glCopyPixels(): Unsupported stencil test state\n"); |
| return false; |
| } |
| |
| if (ctx->Fog.Enabled || |
| ctx->Texture._MaxEnabledTexImageUnit != -1 || |
| ctx->FragmentProgram._Enabled) { |
| perf_debug("glCopyPixels(): Unsupported fragment shader state\n"); |
| return false; |
| } |
| |
| if (ctx->Color.AlphaEnabled || |
| ctx->Color.BlendEnabled) { |
| perf_debug("glCopyPixels(): Unsupported blend state\n"); |
| return false; |
| } |
| |
| if (!ctx->Color.ColorMask[0][0] || |
| !ctx->Color.ColorMask[0][1] || |
| !ctx->Color.ColorMask[0][2] || |
| !ctx->Color.ColorMask[0][3]) { |
| perf_debug("glCopyPixels(): Unsupported color mask state\n"); |
| return false; |
| } |
| |
| if (ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F) { |
| perf_debug("glCopyPixels(): Unsupported pixel zoom\n"); |
| return false; |
| } |
| |
| intel_batchbuffer_flush(brw); |
| |
| /* 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(0, 0, |
| read_fb->Width, read_fb->Height, |
| &srcx, &srcy, &width, &height)) |
| goto out; |
| /* Adjust dst coords for our post-clipped source origin */ |
| dstx += srcx - orig_srcx; |
| dsty += srcy - orig_srcy; |
| |
| if (!intel_miptree_blit(brw, |
| read_irb->mt, read_irb->mt_level, read_irb->mt_layer, |
| srcx, srcy, _mesa_is_winsys_fbo(read_fb), |
| draw_irb->mt, draw_irb->mt_level, draw_irb->mt_layer, |
| dstx, dsty, _mesa_is_winsys_fbo(fb), |
| width, height, |
| (ctx->Color.ColorLogicOpEnabled ? |
| ctx->Color.LogicOp : GL_COPY))) { |
| DBG("%s: blit failure\n", __func__); |
| return false; |
| } |
| |
| if (ctx->Query.CurrentOcclusionObject) |
| ctx->Query.CurrentOcclusionObject->Result += width * height; |
| |
| out: |
| |
| DBG("%s: success\n", __func__); |
| return true; |
| } |
| |
| |
| void |
| intelCopyPixels(struct gl_context * ctx, |
| GLint srcx, GLint srcy, |
| GLsizei width, GLsizei height, |
| GLint destx, GLint desty, GLenum type) |
| { |
| DBG("%s\n", __func__); |
| |
| if (!_mesa_check_conditional_render(ctx)) |
| return; |
| |
| if (do_blit_copypixels(ctx, srcx, srcy, width, height, destx, desty, type)) |
| return; |
| |
| /* this will use swrast if needed */ |
| _mesa_meta_CopyPixels(ctx, srcx, srcy, width, height, destx, desty, type); |
| } |