Mesa (master): intel: Move intel_pixel_read.c to shared for use with i965.
Eric Anholt
anholt at kemper.freedesktop.org
Sat Jun 20 18:42:49 UTC 2009
Module: Mesa
Branch: master
Commit: dcfe0d66bfff9a55741aee298b7ffb051a48f0d3
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=dcfe0d66bfff9a55741aee298b7ffb051a48f0d3
Author: Eric Anholt <eric at anholt.net>
Date: Fri Jun 19 21:43:22 2009 -0700
intel: Move intel_pixel_read.c to shared for use with i965.
---
src/mesa/drivers/dri/i915/intel_pixel_read.c | 307 +------------------------
src/mesa/drivers/dri/intel/intel_pixel_read.c | 306 ++++++++++++++++++++++++
2 files changed, 307 insertions(+), 306 deletions(-)
diff --git a/src/mesa/drivers/dri/i915/intel_pixel_read.c b/src/mesa/drivers/dri/i915/intel_pixel_read.c
deleted file mode 100644
index 56087aa..cc4589f
--- a/src/mesa/drivers/dri/i915/intel_pixel_read.c
+++ /dev/null
@@ -1,306 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
- * 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 TUNGSTEN GRAPHICS 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/enums.h"
-#include "main/mtypes.h"
-#include "main/macros.h"
-#include "main/image.h"
-#include "main/bufferobj.h"
-#include "swrast/swrast.h"
-
-#include "intel_screen.h"
-#include "intel_context.h"
-#include "intel_batchbuffer.h"
-#include "intel_blit.h"
-#include "intel_buffers.h"
-#include "intel_regions.h"
-#include "intel_pixel.h"
-#include "intel_buffer_objects.h"
-
-/* For many applications, the new ability to pull the source buffers
- * back out of the GTT and then do the packing/conversion operations
- * in software will be as much of an improvement as trying to get the
- * blitter and/or texture engine to do the work.
- *
- * This step is gated on private backbuffers.
- *
- * Obviously the frontbuffer can't be pulled back, so that is either
- * an argument for blit/texture readpixels, or for blitting to a
- * temporary and then pulling that back.
- *
- * When the destination is a pbo, however, it's not clear if it is
- * ever going to be pulled to main memory (though the access param
- * will be a good hint). So it sounds like we do want to be able to
- * choose between blit/texture implementation on the gpu and pullback
- * and cpu-based copying.
- *
- * Unless you can magically turn client memory into a PBO for the
- * duration of this call, there will be a cpu-based copying step in
- * any case.
- */
-
-
-static GLboolean
-do_texture_readpixels(GLcontext * ctx,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *pack,
- struct intel_region *dest_region)
-{
-#if 0
- struct intel_context *intel = intel_context(ctx);
- intelScreenPrivate *screen = intel->intelScreen;
- GLint pitch = pack->RowLength ? pack->RowLength : width;
- __DRIdrawablePrivate *dPriv = intel->driDrawable;
- int textureFormat;
- GLenum glTextureFormat;
- int destFormat, depthFormat, destPitch;
- drm_clip_rect_t tmp;
-
- if (INTEL_DEBUG & DEBUG_PIXEL)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
-
- if (ctx->_ImageTransferState ||
- pack->SwapBytes || pack->LsbFirst || !pack->Invert) {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- fprintf(stderr, "%s: check_color failed\n", __FUNCTION__);
- return GL_FALSE;
- }
-
- intel->vtbl.meta_texrect_source(intel, intel_readbuf_region(intel));
-
- if (!intel->vtbl.meta_render_dest(intel, dest_region, type, format)) {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- fprintf(stderr, "%s: couldn't set dest %s/%s\n",
- __FUNCTION__,
- _mesa_lookup_enum_by_nr(type),
- _mesa_lookup_enum_by_nr(format));
- return GL_FALSE;
- }
-
- LOCK_HARDWARE(intel);
-
- if (intel->driDrawable->numClipRects) {
- intel->vtbl.install_meta_state(intel);
- intel->vtbl.meta_no_depth_write(intel);
- intel->vtbl.meta_no_stencil_write(intel);
-
- if (!driClipRectToFramebuffer(ctx->ReadBuffer, &x, &y, &width, &height)) {
- UNLOCK_HARDWARE(intel);
- SET_STATE(i830, state);
- if (INTEL_DEBUG & DEBUG_PIXEL)
- fprintf(stderr, "%s: cliprect failed\n", __FUNCTION__);
- return GL_TRUE;
- }
-
- y = dPriv->h - y - height;
- x += dPriv->x;
- y += dPriv->y;
-
-
- /* Set the frontbuffer up as a large rectangular texture.
- */
- intel->vtbl.meta_tex_rect_source(intel, src_region, textureFormat);
-
-
- intel->vtbl.meta_texture_blend_replace(i830, glTextureFormat);
-
-
- /* Set the 3d engine to draw into the destination region:
- */
-
- intel->vtbl.meta_draw_region(intel, dest_region);
- intel->vtbl.meta_draw_format(intel, destFormat, depthFormat); /* ?? */
-
-
- /* Draw a single quad, no cliprects:
- */
- intel->vtbl.meta_disable_cliprects(intel);
-
- intel->vtbl.draw_quad(intel,
- 0, width, 0, height,
- 0x00ff00ff, x, x + width, y, y + height);
-
- intel->vtbl.leave_meta_state(intel);
- }
- UNLOCK_HARDWARE(intel);
-
- intel_region_wait_fence(ctx, dest_region); /* required by GL */
- return GL_TRUE;
-#endif
-
- return GL_FALSE;
-}
-
-
-
-
-static GLboolean
-do_blit_readpixels(GLcontext * ctx,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *pack, GLvoid * pixels)
-{
- struct intel_context *intel = intel_context(ctx);
- struct intel_region *src = intel_readbuf_region(intel);
- struct intel_buffer_object *dst = intel_buffer_object(pack->BufferObj);
- GLuint dst_offset;
- GLuint rowLength;
-
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s\n", __FUNCTION__);
-
- if (!src)
- return GL_FALSE;
-
- if (dst) {
- /* XXX This validation should be done by core mesa:
- */
- if (!_mesa_validate_pbo_access(2, pack, width, height, 1,
- format, type, pixels)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels");
- return GL_TRUE;
- }
- }
- else {
- /* PBO only for now:
- */
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s - not PBO\n", __FUNCTION__);
- return GL_FALSE;
- }
-
-
- if (ctx->_ImageTransferState ||
- !intel_check_blit_format(src, format, type)) {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s - bad format for blit\n", __FUNCTION__);
- return GL_FALSE;
- }
-
- if (pack->Alignment != 1 || pack->SwapBytes || pack->LsbFirst) {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s: bad packing params\n", __FUNCTION__);
- return GL_FALSE;
- }
-
- if (pack->RowLength > 0)
- rowLength = pack->RowLength;
- else
- rowLength = width;
-
- if (pack->Invert) {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s: MESA_PACK_INVERT not done yet\n", __FUNCTION__);
- return GL_FALSE;
- }
- else {
- rowLength = -rowLength;
- }
-
- /* XXX 64-bit cast? */
- dst_offset = (GLuint) _mesa_image_address(2, pack, pixels, width, height,
- format, type, 0, 0, 0);
-
-
- /* Although the blits go on the command buffer, need to do this and
- * fire with lock held to guarentee cliprects are correct.
- */
- intelFlush(&intel->ctx);
- LOCK_HARDWARE(intel);
-
- if (intel->driDrawable->numClipRects) {
- GLboolean all = (width * height * src->cpp == dst->Base.Size &&
- x == 0 && dst_offset == 0);
-
- dri_bo *dst_buffer = intel_bufferobj_buffer(intel, dst,
- all ? INTEL_WRITE_FULL :
- INTEL_WRITE_PART);
- __DRIdrawablePrivate *dPriv = intel->driDrawable;
- int nbox = dPriv->numClipRects;
- drm_clip_rect_t *box = dPriv->pClipRects;
- drm_clip_rect_t rect;
- drm_clip_rect_t src_rect;
- int i;
-
- src_rect.x1 = dPriv->x + x;
- src_rect.y1 = dPriv->y + dPriv->h - (y + height);
- src_rect.x2 = src_rect.x1 + width;
- src_rect.y2 = src_rect.y1 + height;
-
-
-
- for (i = 0; i < nbox; i++) {
- if (!intel_intersect_cliprects(&rect, &src_rect, &box[i]))
- continue;
-
- intelEmitCopyBlit(intel,
- src->cpp,
- src->pitch, src->buffer, 0, src->tiling,
- rowLength, dst_buffer, dst_offset, GL_FALSE,
- rect.x1,
- rect.y1,
- rect.x1 - src_rect.x1,
- rect.y2 - src_rect.y2,
- rect.x2 - rect.x1, rect.y2 - rect.y1,
- GL_COPY);
- }
- }
- UNLOCK_HARDWARE(intel);
-
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s - DONE\n", __FUNCTION__);
-
- return GL_TRUE;
-}
-
-void
-intelReadPixels(GLcontext * ctx,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *pack, GLvoid * pixels)
-{
- if (INTEL_DEBUG & DEBUG_PIXEL)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- intelFlush(ctx);
-
- if (do_blit_readpixels
- (ctx, x, y, width, height, format, type, pack, pixels))
- return;
-
- if (do_texture_readpixels
- (ctx, x, y, width, height, format, type, pack, pixels))
- return;
-
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s: fallback to swrast\n", __FUNCTION__);
-
- _swrast_ReadPixels(ctx, x, y, width, height, format, type, pack, pixels);
-}
diff --git a/src/mesa/drivers/dri/i915/intel_pixel_read.c b/src/mesa/drivers/dri/i915/intel_pixel_read.c
new file mode 120000
index 56087aa..cc4589f
--- /dev/null
+++ b/src/mesa/drivers/dri/i915/intel_pixel_read.c
@@ -0,0 +1 @@
+../intel/intel_pixel_read.c
\ No newline at end of file
diff --git a/src/mesa/drivers/dri/intel/intel_pixel_read.c b/src/mesa/drivers/dri/intel/intel_pixel_read.c
new file mode 100644
index 0000000..2c57b47
--- /dev/null
+++ b/src/mesa/drivers/dri/intel/intel_pixel_read.c
@@ -0,0 +1,306 @@
+/**************************************************************************
+ *
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN GRAPHICS 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/enums.h"
+#include "main/mtypes.h"
+#include "main/macros.h"
+#include "main/image.h"
+#include "main/bufferobj.h"
+#include "swrast/swrast.h"
+
+#include "intel_screen.h"
+#include "intel_context.h"
+#include "intel_batchbuffer.h"
+#include "intel_blit.h"
+#include "intel_buffers.h"
+#include "intel_regions.h"
+#include "intel_pixel.h"
+#include "intel_buffer_objects.h"
+
+/* For many applications, the new ability to pull the source buffers
+ * back out of the GTT and then do the packing/conversion operations
+ * in software will be as much of an improvement as trying to get the
+ * blitter and/or texture engine to do the work.
+ *
+ * This step is gated on private backbuffers.
+ *
+ * Obviously the frontbuffer can't be pulled back, so that is either
+ * an argument for blit/texture readpixels, or for blitting to a
+ * temporary and then pulling that back.
+ *
+ * When the destination is a pbo, however, it's not clear if it is
+ * ever going to be pulled to main memory (though the access param
+ * will be a good hint). So it sounds like we do want to be able to
+ * choose between blit/texture implementation on the gpu and pullback
+ * and cpu-based copying.
+ *
+ * Unless you can magically turn client memory into a PBO for the
+ * duration of this call, there will be a cpu-based copying step in
+ * any case.
+ */
+
+
+static GLboolean
+do_texture_readpixels(GLcontext * ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *pack,
+ struct intel_region *dest_region)
+{
+#if 0
+ struct intel_context *intel = intel_context(ctx);
+ intelScreenPrivate *screen = intel->intelScreen;
+ GLint pitch = pack->RowLength ? pack->RowLength : width;
+ __DRIdrawablePrivate *dPriv = intel->driDrawable;
+ int textureFormat;
+ GLenum glTextureFormat;
+ int destFormat, depthFormat, destPitch;
+ drm_clip_rect_t tmp;
+
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s\n", __FUNCTION__);
+
+
+ if (ctx->_ImageTransferState ||
+ pack->SwapBytes || pack->LsbFirst || !pack->Invert) {
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s: check_color failed\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ intel->vtbl.meta_texrect_source(intel, intel_readbuf_region(intel));
+
+ if (!intel->vtbl.meta_render_dest(intel, dest_region, type, format)) {
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s: couldn't set dest %s/%s\n",
+ __FUNCTION__,
+ _mesa_lookup_enum_by_nr(type),
+ _mesa_lookup_enum_by_nr(format));
+ return GL_FALSE;
+ }
+
+ LOCK_HARDWARE(intel);
+
+ if (intel->driDrawable->numClipRects) {
+ intel->vtbl.install_meta_state(intel);
+ intel->vtbl.meta_no_depth_write(intel);
+ intel->vtbl.meta_no_stencil_write(intel);
+
+ if (!driClipRectToFramebuffer(ctx->ReadBuffer, &x, &y, &width, &height)) {
+ UNLOCK_HARDWARE(intel);
+ SET_STATE(i830, state);
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s: cliprect failed\n", __FUNCTION__);
+ return GL_TRUE;
+ }
+
+ y = dPriv->h - y - height;
+ x += dPriv->x;
+ y += dPriv->y;
+
+
+ /* Set the frontbuffer up as a large rectangular texture.
+ */
+ intel->vtbl.meta_tex_rect_source(intel, src_region, textureFormat);
+
+
+ intel->vtbl.meta_texture_blend_replace(i830, glTextureFormat);
+
+
+ /* Set the 3d engine to draw into the destination region:
+ */
+
+ intel->vtbl.meta_draw_region(intel, dest_region);
+ intel->vtbl.meta_draw_format(intel, destFormat, depthFormat); /* ?? */
+
+
+ /* Draw a single quad, no cliprects:
+ */
+ intel->vtbl.meta_disable_cliprects(intel);
+
+ intel->vtbl.draw_quad(intel,
+ 0, width, 0, height,
+ 0x00ff00ff, x, x + width, y, y + height);
+
+ intel->vtbl.leave_meta_state(intel);
+ }
+ UNLOCK_HARDWARE(intel);
+
+ intel_region_wait_fence(ctx, dest_region); /* required by GL */
+ return GL_TRUE;
+#endif
+
+ return GL_FALSE;
+}
+
+
+
+
+static GLboolean
+do_blit_readpixels(GLcontext * ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *pack, GLvoid * pixels)
+{
+ struct intel_context *intel = intel_context(ctx);
+ struct intel_region *src = intel_readbuf_region(intel);
+ struct intel_buffer_object *dst = intel_buffer_object(pack->BufferObj);
+ GLuint dst_offset;
+ GLuint rowLength;
+
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s\n", __FUNCTION__);
+
+ if (!src)
+ return GL_FALSE;
+
+ if (dst) {
+ /* XXX This validation should be done by core mesa:
+ */
+ if (!_mesa_validate_pbo_access(2, pack, width, height, 1,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels");
+ return GL_TRUE;
+ }
+ }
+ else {
+ /* PBO only for now:
+ */
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - not PBO\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+
+ if (ctx->_ImageTransferState ||
+ !intel_check_blit_format(src, format, type)) {
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - bad format for blit\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ if (pack->Alignment != 1 || pack->SwapBytes || pack->LsbFirst) {
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s: bad packing params\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+
+ if (pack->RowLength > 0)
+ rowLength = pack->RowLength;
+ else
+ rowLength = width;
+
+ if (pack->Invert) {
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s: MESA_PACK_INVERT not done yet\n", __FUNCTION__);
+ return GL_FALSE;
+ }
+ else {
+ rowLength = -rowLength;
+ }
+
+ /* XXX 64-bit cast? */
+ dst_offset = (GLuint) _mesa_image_address(2, pack, pixels, width, height,
+ format, type, 0, 0, 0);
+
+
+ /* Although the blits go on the command buffer, need to do this and
+ * fire with lock held to guarentee cliprects are correct.
+ */
+ intelFlush(&intel->ctx);
+ LOCK_HARDWARE(intel);
+
+ if (intel->driDrawable->numClipRects) {
+ GLboolean all = (width * height * src->cpp == dst->Base.Size &&
+ x == 0 && dst_offset == 0);
+
+ dri_bo *dst_buffer = intel_bufferobj_buffer(intel, dst,
+ all ? INTEL_WRITE_FULL :
+ INTEL_WRITE_PART);
+ __DRIdrawablePrivate *dPriv = intel->driDrawable;
+ int nbox = dPriv->numClipRects;
+ drm_clip_rect_t *box = dPriv->pClipRects;
+ drm_clip_rect_t rect;
+ drm_clip_rect_t src_rect;
+ int i;
+
+ src_rect.x1 = dPriv->x + x;
+ src_rect.y1 = dPriv->y + dPriv->h - (y + height);
+ src_rect.x2 = src_rect.x1 + width;
+ src_rect.y2 = src_rect.y1 + height;
+
+
+
+ for (i = 0; i < nbox; i++) {
+ if (!intel_intersect_cliprects(&rect, &src_rect, &box[i]))
+ continue;
+
+ intelEmitCopyBlit(intel,
+ src->cpp,
+ src->pitch, src->buffer, 0, src->tiling,
+ rowLength, dst_buffer, dst_offset, GL_FALSE,
+ rect.x1,
+ rect.y1,
+ rect.x1 - src_rect.x1,
+ rect.y2 - src_rect.y2,
+ rect.x2 - rect.x1, rect.y2 - rect.y1,
+ GL_COPY);
+ }
+ }
+ UNLOCK_HARDWARE(intel);
+
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s - DONE\n", __FUNCTION__);
+
+ return GL_TRUE;
+}
+
+void
+intelReadPixels(GLcontext * ctx,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const struct gl_pixelstore_attrib *pack, GLvoid * pixels)
+{
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ fprintf(stderr, "%s\n", __FUNCTION__);
+
+ intelFlush(ctx);
+
+ if (do_blit_readpixels
+ (ctx, x, y, width, height, format, type, pack, pixels))
+ return;
+
+ if (do_texture_readpixels
+ (ctx, x, y, width, height, format, type, pack, pixels))
+ return;
+
+ if (INTEL_DEBUG & DEBUG_PIXEL)
+ _mesa_printf("%s: fallback to swrast\n", __FUNCTION__);
+
+ _swrast_ReadPixels(ctx, x, y, width, height, format, type, pack, pixels);
+}
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