+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2006 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 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 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 "image.h"
-#include "mtypes.h"
-#include "macros.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_tris.h"
-
-
-
-static GLboolean
-do_texture_drawpixels(GLcontext * ctx,
- GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- const GLvoid * pixels)
-{
- struct intel_context *intel = intel_context(ctx);
- struct intel_region *dst = intel_drawbuf_region(intel);
- struct intel_buffer_object *src = intel_buffer_object(unpack->BufferObj);
- GLuint rowLength = unpack->RowLength ? unpack->RowLength : width;
- GLuint src_offset;
-
- if (INTEL_DEBUG & DEBUG_PIXEL)
- fprintf(stderr, "%s\n", __FUNCTION__);
-
- intelFlush(&intel->ctx);
- intel->vtbl.render_start(intel);
- intel->vtbl.emit_state(intel);
-
- if (!dst)
- return GL_FALSE;
-
- if (src) {
- if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
- format, type, pixels)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels");
- return GL_TRUE;
- }
- }
- else {
- /* PBO only for now:
- */
-/* _mesa_printf("%s - not PBO\n", __FUNCTION__); */
- return GL_FALSE;
- }
-
- /* There are a couple of things we can't do yet, one of which is
- * set the correct state for pixel operations when GL texturing is
- * enabled. That's a pretty rare state and probably not worth the
- * effort. A completely device-independent version of this may do
- * more.
- *
- * Similarly, we make no attempt to merge metaops processing with
- * an enabled fragment program, though it would certainly be
- * possible.
- */
- if (!intel_check_meta_tex_fragment_ops(ctx)) {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s - bad GL fragment state for metaops texture\n",
- __FUNCTION__);
- return GL_FALSE;
- }
-
- 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:
- */
- intel->vtbl.meta_draw_region(intel, dst, intel->depth_region);
-
- intel->vtbl.meta_import_pixel_state(intel);
-
- src_offset = (GLuint) _mesa_image_address(2, unpack, pixels, width, height,
- format, type, 0, 0, 0);
-
-
- /* Setup the pbo up as a rectangular texture, if possible.
- *
- * TODO: This is almost always possible if the i915 fragment
- * program is adjusted to correctly swizzle the sampled colors.
- * The major exception is any 24bit texture, like RGB888, for which
- * there is no hardware support.
- */
- if (!intel->vtbl.meta_tex_rect_source(intel, src->buffer, src_offset,
- rowLength, height, format, type)) {
- intel->vtbl.leave_meta_state(intel);
- return GL_FALSE;
- }
-
- intel->vtbl.meta_texture_blend_replace(intel);
-
-
- LOCK_HARDWARE(intel);
-
- if (intel->driDrawable->numClipRects) {
- __DRIdrawablePrivate *dPriv = intel->driDrawable;
- GLint srcx, srcy;
- GLint dstx, dsty;
-
- dstx = x;
- dsty = dPriv->h - (y + height);
-
- srcx = 0; /* skiprows/pixels already done */
- srcy = 0;
-
- if (0) {
- const GLint orig_x = dstx;
- const GLint orig_y = dsty;
-
- if (!_mesa_clip_to_region(0, 0, dst->pitch, dst->height,
- &dstx, &dsty, &width, &height))
- goto out;
-
- srcx += dstx - orig_x;
- srcy += dsty - orig_y;
- }
-
-
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("draw %d,%d %dx%d\n", dstx, dsty, width, height);
-
- /* Must use the regular cliprect mechanism in order to get the
- * drawing origin set correctly. Otherwise scissor state is in
- * incorrect coordinate space. Does this even need to hold the
- * lock???
- */
- intel->vtbl.meta_draw_quad(intel,
- dstx, dstx + width * ctx->Pixel.ZoomX,
- dPriv->h - (y + height * ctx->Pixel.ZoomY),
- dPriv->h - (y),
- -ctx->Current.RasterPos[2] * .5,
- 0x00ff00ff,
- srcx, srcx + width, srcy + height, srcy);
- out:
- intel->vtbl.leave_meta_state(intel);
- intel_batchbuffer_flush(intel->batch);
- }
- UNLOCK_HARDWARE(intel);
- return GL_TRUE;
-}
-
-
-
-
-
-/* Pros:
- * - no waiting for idle before updating framebuffer.
- *
- * Cons:
- * - if upload is by memcpy, this may actually be slower than fallback path.
- * - uploads the whole image even if destination is clipped
- *
- * Need to benchmark.
- *
- * Given the questions about performance, implement for pbo's only.
- * This path is definitely a win if the pbo is already in agp. If it
- * turns out otherwise, we can add the code necessary to upload client
- * data to agp space before performing the blit. (Though it may turn
- * out to be better/simpler just to use the texture engine).
- */
-static GLboolean
-do_blit_drawpixels(GLcontext * ctx,
- GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- const GLvoid * pixels)
-{
- struct intel_context *intel = intel_context(ctx);
- struct intel_region *dest = intel_drawbuf_region(intel);
- struct intel_buffer_object *src = intel_buffer_object(unpack->BufferObj);
- GLuint src_offset;
- GLuint rowLength;
- dri_fence *fence = NULL;
-
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s\n", __FUNCTION__);
-
-
- if (!dest) {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s - no dest\n", __FUNCTION__);
- return GL_FALSE;
- }
-
- if (src) {
- /* This validation should be done by core mesa:
- */
- if (!_mesa_validate_pbo_access(2, unpack, 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 (!intel_check_blit_format(dest, format, type)) {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s - bad format for blit\n", __FUNCTION__);
- return GL_FALSE;
- }
-
- if (!intel_check_blit_fragment_ops(ctx)) {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s - bad GL fragment state for blitter\n",
- __FUNCTION__);
- return GL_FALSE;
- }
-
- if (ctx->Pixel.ZoomX != 1.0F) {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s - bad PixelZoomX for blit\n", __FUNCTION__);
- return GL_FALSE;
- }
-
-
- if (unpack->RowLength > 0)
- rowLength = unpack->RowLength;
- else
- rowLength = width;
-
- if (ctx->Pixel.ZoomY == -1.0F) {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s - bad PixelZoomY for blit\n", __FUNCTION__);
- return GL_FALSE; /* later */
- y -= height;
- }
- else if (ctx->Pixel.ZoomY == 1.0F) {
- rowLength = -rowLength;
- }
- else {
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s - bad PixelZoomY for blit\n", __FUNCTION__);
- return GL_FALSE;
- }
-
- src_offset = (GLuint) _mesa_image_address(2, unpack, pixels, width, height,
- format, type, 0, 0, 0);
-
- 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 dest_rect;
- dri_bo *src_buffer = intel_bufferobj_buffer(intel, src, INTEL_READ);
- int i;
-
- dest_rect.x1 = dPriv->x + x;
- dest_rect.y1 = dPriv->y + dPriv->h - (y + height);
- dest_rect.x2 = dest_rect.x1 + width;
- dest_rect.y2 = dest_rect.y1 + height;
-
- for (i = 0; i < nbox; i++) {
- if (!intel_intersect_cliprects(&rect, &dest_rect, &box[i]))
- continue;
-
- intelEmitCopyBlit(intel,
- dest->cpp,
- rowLength, src_buffer, src_offset, GL_FALSE,
- dest->pitch, dest->buffer, 0, dest->tiled,
- rect.x1 - dest_rect.x1,
- rect.y2 - dest_rect.y2,
- rect.x1,
- rect.y1, rect.x2 - rect.x1, rect.y2 - rect.y1,
- ctx->Color.ColorLogicOpEnabled ?
- ctx->Color.LogicOp : GL_COPY);
- }
- intel_batchbuffer_flush(intel->batch);
- fence = intel->batch->last_fence;
- dri_fence_reference(fence);
- }
- UNLOCK_HARDWARE(intel);
-
- if (fence) {
- dri_fence_wait(fence);
- dri_fence_unreference(fence);
- }
-
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s - DONE\n", __FUNCTION__);
-
- return GL_TRUE;
-}
-
-
-
-void
-intelDrawPixels(GLcontext * ctx,
- GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format,
- GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- const GLvoid * pixels)
-{
- if (do_blit_drawpixels(ctx, x, y, width, height, format, type,
- unpack, pixels))
- return;
-
- if (do_texture_drawpixels(ctx, x, y, width, height, format, type,
- unpack, pixels))
- return;
-
-
- if (INTEL_DEBUG & DEBUG_PIXEL)
- _mesa_printf("%s: fallback to swrast\n", __FUNCTION__);
-
- if (ctx->FragmentProgram._Current == ctx->FragmentProgram._TexEnvProgram) {
- /*
- * We don't want the i915 texenv program to be applied to DrawPixels.
- * This is really just a performance optimization (mesa will other-
- * wise happily run the fragment program on each pixel in the image).
- */
- struct gl_fragment_program *fpSave = ctx->FragmentProgram._Current;
- /* can't just set current frag prog to 0 here as on buffer resize
- we'll get new state checks which will segfault. Remains a hack. */
- ctx->FragmentProgram._Current = NULL;
- ctx->FragmentProgram._UseTexEnvProgram = GL_FALSE;
- ctx->FragmentProgram._Active = GL_FALSE;
- _swrast_DrawPixels( ctx, x, y, width, height, format, type,
- unpack, pixels );
- ctx->FragmentProgram._Current = fpSave;
- ctx->FragmentProgram._UseTexEnvProgram = GL_TRUE;
- ctx->FragmentProgram._Active = GL_TRUE;
- }
- else {
- _swrast_DrawPixels( ctx, x, y, width, height, format, type,
- unpack, pixels );
- }
-}
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