--- /dev/null
+/*
+ * Copyright 2006 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 portionsalloc
+ * 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/enums.h"
+#include "main/image.h"
+#include "main/glformats.h"
+#include "main/mtypes.h"
+#include "main/condrender.h"
+#include "main/fbobject.h"
+#include "main/teximage.h"
+#include "main/texobj.h"
+#include "main/texstate.h"
+#include "main/bufferobj.h"
+#include "swrast/swrast.h"
+#include "drivers/common/meta.h"
+
+#include "brw_context.h"
+#include "intel_screen.h"
+#include "intel_blit.h"
+#include "intel_buffers.h"
+#include "intel_fbo.h"
+#include "intel_mipmap_tree.h"
+#include "intel_pixel.h"
+#include "intel_buffer_objects.h"
+
+#define FILE_DEBUG_FLAG DEBUG_PIXEL
+
+static bool
+do_blit_drawpixels(struct gl_context * ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid * pixels)
+{
+ struct brw_context *brw = brw_context(ctx);
+ struct intel_buffer_object *src = intel_buffer_object(unpack->BufferObj);
+ GLuint src_offset;
+ struct brw_bo *src_buffer;
+
+ DBG("%s\n", __func__);
+
+ if (!intel_check_blit_fragment_ops(ctx, false))
+ return false;
+
+ if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
+ DBG("%s: fallback due to MRT\n", __func__);
+ return false;
+ }
+
+ intel_prepare_render(brw);
+
+ struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0];
+ struct intel_renderbuffer *irb = intel_renderbuffer(rb);
+
+ mesa_format src_format = _mesa_format_from_format_and_type(format, type);
+ if (_mesa_format_is_mesa_array_format(src_format))
+ src_format = _mesa_format_from_array_format(src_format);
+ mesa_format dst_format = irb->mt->format;
+
+ /* We can safely discard sRGB encode/decode for the DrawPixels interface */
+ src_format = _mesa_get_srgb_format_linear(src_format);
+ dst_format = _mesa_get_srgb_format_linear(dst_format);
+
+ if (!intel_miptree_blit_compatible_formats(src_format, dst_format)) {
+ DBG("%s: bad format for blit\n", __func__);
+ return false;
+ }
+
+ if (unpack->SwapBytes || unpack->LsbFirst ||
+ unpack->SkipPixels || unpack->SkipRows) {
+ DBG("%s: bad packing params\n", __func__);
+ return false;
+ }
+
+ int src_stride = _mesa_image_row_stride(unpack, width, format, type);
+ bool src_flip = false;
+ /* Mesa flips the src_stride for unpack->Invert, but we want our mt to have
+ * a normal src_stride.
+ */
+ if (unpack->Invert) {
+ src_stride = -src_stride;
+ src_flip = true;
+ }
+
+ src_offset = (GLintptr)pixels;
+ src_offset += _mesa_image_offset(2, unpack, width, height,
+ format, type, 0, 0, 0);
+
+ src_buffer = intel_bufferobj_buffer(brw, src, src_offset,
+ height * src_stride, false);
+
+ struct intel_mipmap_tree *pbo_mt =
+ intel_miptree_create_for_bo(brw,
+ src_buffer,
+ irb->mt->format,
+ src_offset,
+ width, height, 1,
+ src_stride,
+ ISL_TILING_LINEAR,
+ MIPTREE_CREATE_DEFAULT);
+ if (!pbo_mt)
+ return false;
+
+ if (!intel_miptree_blit(brw,
+ pbo_mt, 0, 0,
+ 0, 0, src_flip,
+ irb->mt, irb->mt_level, irb->mt_layer,
+ x, y, _mesa_is_winsys_fbo(ctx->DrawBuffer),
+ width, height, COLOR_LOGICOP_COPY)) {
+ DBG("%s: blit failed\n", __func__);
+ intel_miptree_release(&pbo_mt);
+ return false;
+ }
+
+ intel_miptree_release(&pbo_mt);
+
+ if (ctx->Query.CurrentOcclusionObject)
+ ctx->Query.CurrentOcclusionObject->Result += width * height;
+
+ DBG("%s: success\n", __func__);
+ return true;
+}
+
+void
+intelDrawPixels(struct gl_context * ctx,
+ GLint x, GLint y,
+ GLsizei width, GLsizei height,
+ GLenum format,
+ GLenum type,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid * pixels)
+{
+ struct brw_context *brw = brw_context(ctx);
+
+ if (!_mesa_check_conditional_render(ctx))
+ return;
+
+ if (format == GL_STENCIL_INDEX) {
+ _swrast_DrawPixels(ctx, x, y, width, height, format, type,
+ unpack, pixels);
+ return;
+ }
+
+ if (_mesa_is_bufferobj(unpack->BufferObj)) {
+ if (do_blit_drawpixels(ctx, x, y, width, height, format, type, unpack,
+ pixels)) {
+ return;
+ }
+
+ perf_debug("%s: fallback to generic code in PBO case\n", __func__);
+ }
+
+ _mesa_meta_DrawPixels(ctx, x, y, width, height, format, type,
+ unpack, pixels);
+}
projects / mesa.git / blobdiff