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/**************************************************************************
*
* 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/mtypes.h"
#include "main/enums.h"
#include "main/image.h"
#include "main/teximage.h"
#include "main/texstate.h"
#include "main/mipmap.h"
#include "drivers/common/meta.h"
#include "intel_screen.h"
#include "intel_context.h"
#include "intel_batchbuffer.h"
#include "intel_buffers.h"
#include "intel_mipmap_tree.h"
#include "intel_regions.h"
#include "intel_fbo.h"
#include "intel_tex.h"
#include "intel_blit.h"
#define FILE_DEBUG_FLAG DEBUG_TEXTURE
/**
* Get the intel_region which is the source for any glCopyTex[Sub]Image call.
*
* Do the best we can using the blitter. A future project is to use
* the texture engine and fragment programs for these copies.
*/
static const struct intel_region *
get_teximage_source(struct intel_context *intel, GLenum internalFormat)
{
struct intel_renderbuffer *irb;
DBG("%s %s\n", __FUNCTION__,
_mesa_lookup_enum_by_nr(internalFormat));
switch (internalFormat) {
case GL_DEPTH_COMPONENT:
case GL_DEPTH_COMPONENT16:
irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH);
if (irb && irb->region && irb->region->cpp == 2)
return irb->region;
return NULL;
case GL_DEPTH24_STENCIL8_EXT:
case GL_DEPTH_STENCIL_EXT:
irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH);
if (irb && irb->region && irb->region->cpp == 4)
return irb->region;
return NULL;
case GL_RGBA:
case GL_RGBA8:
case GL_RGB:
case GL_RGB8:
return intel_readbuf_region(intel);
default:
return NULL;
}
}
static GLboolean
do_copy_texsubimage(struct intel_context *intel,
GLenum target,
struct intel_texture_image *intelImage,
GLenum internalFormat,
GLint dstx, GLint dsty,
GLint x, GLint y, GLsizei width, GLsizei height)
{
GLcontext *ctx = &intel->ctx;
const struct intel_region *src = get_teximage_source(intel, internalFormat);
if (!intelImage->mt || !src) {
if (INTEL_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "%s fail %p %p (0x%08x)\n",
__FUNCTION__, intelImage->mt, src, internalFormat);
return GL_FALSE;
}
if (intelImage->mt->cpp != src->cpp) {
if (INTEL_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "%s fail %d vs %d cpp\n",
__FUNCTION__, intelImage->mt->cpp, src->cpp);
return GL_FALSE;
}
// intelFlush(ctx);
LOCK_HARDWARE(intel);
{
drm_intel_bo *dst_bo = intel_region_buffer(intel,
intelImage->mt->region,
INTEL_WRITE_PART);
const GLint orig_x = x;
const GLint orig_y = y;
GLuint image_x, image_y;
GLshort src_pitch;
/* get dest x/y in destination texture */
intel_miptree_get_image_offset(intelImage->mt,
intelImage->level,
intelImage->face,
0,
&image_x, &image_y);
/* Update dst for clipped src. Need to also clip the source rect. */
dstx += x - orig_x;
dsty += y - orig_y;
/* Can't blit to tiled buffers with non-tile-aligned offset. */
if (intelImage->mt->region->tiling == I915_TILING_Y) {
UNLOCK_HARDWARE(intel);
return GL_FALSE;
}
if (ctx->ReadBuffer->Name == 0) {
/* reading from a window, adjust x, y */
const __DRIdrawablePrivate *dPriv = intel->driReadDrawable;
y = dPriv->y + (dPriv->h - (y + height));
x += dPriv->x;
/* Invert the data coming from the source rectangle due to GL
* and hardware disagreeing on where y=0 is.
*
* It appears that our offsets and pitches get mangled
* appropriately by the hardware, and we don't need to adjust them
* on our own.
*/
src_pitch = -src->pitch;
} else {
/* reading from a FBO, y is already oriented the way we like */
src_pitch = src->pitch;
}
/* blit from src buffer to texture */
if (!intelEmitCopyBlit(intel,
intelImage->mt->cpp,
src_pitch,
src->buffer,
src->draw_offset,
src->tiling,
intelImage->mt->pitch,
dst_bo,
0,
intelImage->mt->region->tiling,
x, y, image_x + dstx, image_y + dsty,
width, height,
GL_COPY)) {
UNLOCK_HARDWARE(intel);
return GL_FALSE;
}
}
UNLOCK_HARDWARE(intel);
return GL_TRUE;
}
static void
intelCopyTexImage1D(GLcontext * ctx, GLenum target, GLint level,
GLenum internalFormat,
GLint x, GLint y, GLsizei width, GLint border)
{
struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
struct gl_texture_object *texObj =
_mesa_select_tex_object(ctx, texUnit, target);
struct gl_texture_image *texImage =
_mesa_select_tex_image(ctx, texObj, target, level);
int srcx, srcy, dstx, dsty, height;
if (border)
goto fail;
/* Setup or redefine the texture object, mipmap tree and texture
* image. Don't populate yet.
*/
ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
width, border,
GL_RGBA, CHAN_TYPE, NULL,
&ctx->DefaultPacking, texObj, texImage);
srcx = x;
srcy = y;
dstx = 0;
dsty = 0;
height = 1;
if (!_mesa_clip_copytexsubimage(ctx,
&dstx, &dsty,
&srcx, &srcy,
&width, &height))
return;
if (!do_copy_texsubimage(intel_context(ctx), target,
intel_texture_image(texImage),
internalFormat, 0, 0, x, y, width, height))
goto fail;
return;
fail:
if (INTEL_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
_mesa_meta_CopyTexImage1D(ctx, target, level, internalFormat, x, y,
width, border);
}
static void
intelCopyTexImage2D(GLcontext * ctx, GLenum target, GLint level,
GLenum internalFormat,
GLint x, GLint y, GLsizei width, GLsizei height,
GLint border)
{
struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
struct gl_texture_object *texObj =
_mesa_select_tex_object(ctx, texUnit, target);
struct gl_texture_image *texImage =
_mesa_select_tex_image(ctx, texObj, target, level);
int srcx, srcy, dstx, dsty;
if (border)
goto fail;
/* Setup or redefine the texture object, mipmap tree and texture
* image. Don't populate yet.
*/
ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
width, height, border,
GL_RGBA, GL_UNSIGNED_BYTE, NULL,
&ctx->DefaultPacking, texObj, texImage);
srcx = x;
srcy = y;
dstx = 0;
dsty = 0;
if (!_mesa_clip_copytexsubimage(ctx,
&dstx, &dsty,
&srcx, &srcy,
&width, &height))
return;
if (!do_copy_texsubimage(intel_context(ctx), target,
intel_texture_image(texImage),
internalFormat, 0, 0, x, y, width, height))
goto fail;
return;
fail:
if (INTEL_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
_mesa_meta_CopyTexImage2D(ctx, target, level, internalFormat, x, y,
width, height, border);
}
static void
intelCopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level,
GLint xoffset, GLint x, GLint y, GLsizei width)
{
struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
struct gl_texture_object *texObj =
_mesa_select_tex_object(ctx, texUnit, target);
struct gl_texture_image *texImage =
_mesa_select_tex_image(ctx, texObj, target, level);
GLenum internalFormat = texImage->InternalFormat;
/* XXX need to check <border> as in above function? */
/* Need to check texture is compatible with source format.
*/
if (!do_copy_texsubimage(intel_context(ctx), target,
intel_texture_image(texImage),
internalFormat, xoffset, 0, x, y, width, 1)) {
if (INTEL_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
_mesa_meta_CopyTexSubImage1D(ctx, target, level, xoffset, x, y, width);
}
}
static void
intelCopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLint x, GLint y, GLsizei width, GLsizei height)
{
struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
struct gl_texture_object *texObj =
_mesa_select_tex_object(ctx, texUnit, target);
struct gl_texture_image *texImage =
_mesa_select_tex_image(ctx, texObj, target, level);
GLenum internalFormat = texImage->InternalFormat;
/* Need to check texture is compatible with source format.
*/
if (!do_copy_texsubimage(intel_context(ctx), target,
intel_texture_image(texImage),
internalFormat,
xoffset, yoffset, x, y, width, height)) {
if (INTEL_DEBUG & DEBUG_FALLBACKS)
fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
_mesa_meta_CopyTexSubImage2D(ctx, target, level,
xoffset, yoffset, x, y, width, height);
}
}
void
intelInitTextureCopyImageFuncs(struct dd_function_table *functions)
{
functions->CopyTexImage1D = intelCopyTexImage1D;
functions->CopyTexImage2D = intelCopyTexImage2D;
functions->CopyTexSubImage1D = intelCopyTexSubImage1D;
functions->CopyTexSubImage2D = intelCopyTexSubImage2D;
}
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