/* * 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/stencil.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->surf.samples > 1 || read_irb->mt->surf.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 (brw->stencil_enabled) { perf_debug("glCopyPixels(): Unsupported stencil test state\n"); return false; } if (ctx->Fog.Enabled || ctx->Texture._MaxEnabledTexImageUnit != -1 || _mesa_arb_fragment_program_enabled(ctx)) { 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 (GET_COLORMASK(ctx->Color.ColorMask, 0) != 0xf) { 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 : COLOR_LOGICOP_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); }