--- /dev/null
+/**************************************************************************
+ *
+ * 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, sub license, 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 NON-INFRINGEMENT.
+ * 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/glheader.h"
+#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 "intel_context.h"
+#include "intel_buffers.h"
+#include "intel_mipmap_tree.h"
+#include "intel_regions.h"
+#include "intel_pixel.h"
+#include "intel_fbo.h"
+#include "intel_blit.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 intel_context *intel = intel_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);
+
+ 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 (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 (_mesa_stencil_is_enabled(ctx)) {
+ 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 (!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_prepare_render(intel);
+
+ intel_flush(&intel->ctx);
+
+ /* 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(intel,
+ 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:
+ intel_check_front_buffer_rendering(intel);
+
+ 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);
+}
projects / mesa.git / blobdiff