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Diffstat (limited to 'src/mesa/drivers/dri/i915-tex/intel_pixel_read.c')
-rw-r--r--src/mesa/drivers/dri/i915-tex/intel_pixel_read.c315
1 files changed, 0 insertions, 315 deletions
diff --git a/src/mesa/drivers/dri/i915-tex/intel_pixel_read.c b/src/mesa/drivers/dri/i915-tex/intel_pixel_read.c
deleted file mode 100644
index 68dd6ea376e..00000000000
--- a/src/mesa/drivers/dri/i915-tex/intel_pixel_read.c
+++ /dev/null
@@ -1,315 +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 "glheader.h"
-#include "enums.h"
-#include "mtypes.h"
-#include "macros.h"
-#include "image.h"
-#include "bufferobj.h"
-#include "swrast/swrast.h"
-
-#include "intel_screen.h"
-#include "intel_context.h"
-#include "intel_ioctl.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"
-
-#include "intel_bufmgr.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) {
- 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))
- {
- 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);
- 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;
- GLuint fence = 0;
-
- 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");
- _mesa_printf("%s - _mesa_validate_pbo_access\n", __FUNCTION__);
-
- return GL_TRUE;
- }
- }
- else {
- /* PBO only for now:
- */
- _mesa_printf("%s - not PBO\n", __FUNCTION__);
- return GL_FALSE;
- }
-
-
- if (ctx->_ImageTransferState ||
- !intel_check_blit_format(src, format, type)) {
- _mesa_printf("%s - bad format for blit\n", __FUNCTION__);
- return GL_FALSE;
- }
-
- if (pack->Alignment != 1 || pack->SwapBytes || pack->LsbFirst) {
- _mesa_printf("%s: bad packing params\n", __FUNCTION__);
- return GL_FALSE;
- }
-
- if (pack->RowLength > 0)
- rowLength = pack->RowLength;
- else
- rowLength = width;
-
- if (pack->Invert) {
- _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)
- {
- __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,
- rowLength,
- intel_bufferobj_buffer(dst), dst_offset,
- rect.x1,
- rect.y1,
- rect.x1 - src_rect.x1,
- rect.y2 - src_rect.y2,
- rect.x2 - rect.x1,
- rect.y2 - rect.y1 );
- }
-
- fence = intel_batchbuffer_flush(intel->batch);
- }
- UNLOCK_HARDWARE( intel );
-
- if (intel->driDrawable->numClipRects)
- bmFinishFence(intel->bm, fence);
-
- 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;
-
- _mesa_printf("%s: fallback to swrast\n", __FUNCTION__);
-
- _swrast_ReadPixels( ctx, x, y, width, height, format, type, pack, pixels);
-}
-
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