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