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/**************************************************************************
*
* 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->intelScreen->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_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;
struct _DriFenceObject *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;
struct _DriBufferObject *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,
dest->pitch,
dest->buffer, 0,
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);
}
fence = intel_batchbuffer_flush(intel->batch);
driFenceReference(fence);
}
UNLOCK_HARDWARE(intel);
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
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) {
/* don't want the i915 texenv program to be applied to DrawPixels */
struct gl_fragment_program *fpSave = ctx->FragmentProgram._Current;
ctx->FragmentProgram._Current = NULL;
_swrast_DrawPixels( ctx, x, y, width, height, format, type,
unpack, pixels );
ctx->FragmentProgram._Current = fpSave;
}
else {
_swrast_DrawPixels( ctx, x, y, width, height, format, type,
unpack, pixels );
}
}
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