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Diffstat (limited to 'src/mesa/drivers/dri/i915tex/intel_pixel_read.c')
-rw-r--r--src/mesa/drivers/dri/i915tex/intel_pixel_read.c327
1 files changed, 0 insertions, 327 deletions
diff --git a/src/mesa/drivers/dri/i915tex/intel_pixel_read.c b/src/mesa/drivers/dri/i915tex/intel_pixel_read.c
deleted file mode 100644
index 76a6959625..0000000000
--- a/src/mesa/drivers/dri/i915tex/intel_pixel_read.c
+++ /dev/null
@@ -1,327 +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_fbo.h"
-#include "intel_tris.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.
- *
- * XXX this is not true for fake frontbuffers...
-
- * 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 srcx, GLint srcy, 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);
- struct intel_region *depthreg = NULL;
- struct intel_region *src = intel_readbuf_region(intel);
-// struct intel_region *src = copypix_src_region(intel, type);
- GLenum src_format;
- GLenum src_type;
-
- if (INTEL_DEBUG & DEBUG_PIXEL)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- if (!src || type != GL_COLOR)
- return GL_FALSE;
-
- intelFlush(&intel->ctx);
-
- intel->vtbl.install_meta_state(intel);
-
- /* Is this true? Also will need to turn depth testing on according
- * to state:
- */
- intel->vtbl.meta_no_stencil_write(intel);
- intel->vtbl.meta_no_depth_write(intel);
-
- /* Set the 3d engine to draw into the destination region:
- */
- if (ctx->DrawBuffer->_DepthBuffer &&
- ctx->DrawBuffer->_DepthBuffer->Wrapped)
- depthreg = (intel_renderbuffer(ctx->DrawBuffer->_DepthBuffer->Wrapped))->region;
-
- intel->vtbl.meta_draw_region(intel, dest_region, depthreg);
-
- intel->vtbl.meta_import_pixel_state(intel);
-
- if (src->cpp == 2) {
- src_format = GL_RGB;
- src_type = GL_UNSIGNED_SHORT_5_6_5;
- }
- else {
- src_format = GL_BGRA;
- src_type = GL_UNSIGNED_BYTE;
- }
-
- /* Set the frontbuffer up as a large rectangular texture.
- */
- if (!intel->vtbl.meta_tex_rect_source(intel, src->buffer, 0,
- src->pitch,
- src->height, src_format, src_type)) {
- intel->vtbl.leave_meta_state(intel);
- return GL_FALSE;
- }
-
-
- intel->vtbl.meta_texture_blend_replace(intel);
-
- LOCK_HARDWARE(intel);
-
- {
- int dstbufHeight = height * ctx->Pixel.ZoomY; /* ? */
- /* convert from gl to hardware coords */
- srcy = ctx->ReadBuffer->Height - srcy - height;
-
- /* Clip against the source region. This is the only source
- * clipping we do. XXX: Just set the texcord wrap mode to clamp
- * or similar.
- *
- */
- if (0) {
- if (!_mesa_clip_to_region(0, 0, ctx->ReadBuffer->Width - 1,
- ctx->ReadBuffer->Height - 1,
- &srcx, &srcy, &width, &height))
- goto out;
-
- }
-
- /* Just use the regular cliprect mechanism... Does this need to
- * even hold the lock???
- */
- intel_meta_draw_quad(intel,
- 0,
- width * ctx->Pixel.ZoomX,
- dstbufHeight - (height * ctx->Pixel.ZoomY),
- dstbufHeight, 0, /* XXX: what z value? */
- 0x00ff00ff,
- srcx, srcx + width, srcy, srcy + height);
-
- out:
- intel->vtbl.leave_meta_state(intel);
- intel_batchbuffer_flush(intel->batch);
- }
- UNLOCK_HARDWARE(intel);
-
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s: success\n", __FUNCTION__);
- 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_renderbuffer *irbread;
- struct intel_region *src;
- struct intel_buffer_object *dst = intel_buffer_object(pack->BufferObj);
- GLuint dst_offset;
- GLuint rowLength;
- struct _DriFenceObject *fence = NULL;
-
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s\n", __FUNCTION__);
-
- irbread = intel_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer);
- if (!irbread || !irbread->region)
- return GL_FALSE;
- src = irbread->region;
-
- 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, "glReadPixels");
- 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->RowLength > 0)
- rowLength = pack->RowLength;
- else
- rowLength = width;
-
- if (((rowLength * src->cpp) % pack->Alignment) ||
- pack->SwapBytes || pack->LsbFirst) {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s: bad packing params\n", __FUNCTION__);
- return GL_FALSE;
- }
-
- 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);
-
- intelFlush(&intel->ctx);
-
- {
- GLint srcx = x;
- GLint srcy = irbread->Base.Height - (y + height);
- GLint srcwidth = width;
- GLint srcheight = height;
-
- GLboolean all = (width * height * src->cpp == dst->Base.Size &&
- x == 0 && dst_offset == 0);
-
- struct _DriBufferObject *dst_buffer =
- intel_bufferobj_buffer(intel, dst, all ? INTEL_WRITE_FULL :
- INTEL_WRITE_PART);
-
- /* clip to src region */
- if (_mesa_clip_to_region(0, 0, irbread->Base.Width - 1,
- irbread->Base.Height - 1,
- &srcx, &srcy, &srcwidth, &srcheight));
-
- {
- intelEmitCopyBlit(intel,
- src->cpp,
- src->pitch, src->buffer, 0,
- rowLength,
- dst_buffer, dst_offset,
- srcx, srcy,
- 0, 0,
- width, height,
- GL_COPY);
- }
-
- fence = intel_batchbuffer_flush(intel->batch);
- driFenceReference(fence);
-
- }
-
- if (fence) {
- driFenceFinish(fence, DRM_FENCE_TYPE_EXE | DRM_I915_FENCE_TYPE_RW,
- GL_FALSE);
- driFenceUnReference(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;
-
- 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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