static void
intelCopyTexSubImage(struct gl_context *ctx, GLuint dims,
struct gl_texture_image *texImage,
GLint xoffset, GLint yoffset, GLint zoffset,
struct gl_renderbuffer *rb,
GLint x, GLint y,
GLsizei width, GLsizei height)
{
struct intel_context *intel = intel_context(ctx);
if (dims != 3) {
#ifndef I915
/* Try BLORP first. It can handle almost everything. */
if (brw_blorp_copytexsubimage(intel, rb, texImage, x, y,
xoffset, yoffset, width, height))
return;
#endif
/* Next, try the BLT engine. */
if (intel_copy_texsubimage(intel,
intel_texture_image(texImage),
xoffset, yoffset,
intel_renderbuffer(rb), x, y, width, height))
return;
}
/* Finally, fall back to meta. This will likely be slow. */
fallback_debug("%s - fallback to swrast\n", __FUNCTION__);
_mesa_meta_CopyTexSubImage(ctx, dims, texImage,
xoffset, yoffset, zoffset,
rb, x, y, width, height);
}
static void
intelCopyTexSubImage1D(struct gl_context *ctx,
struct gl_texture_image *texImage,
GLint xoffset,
struct gl_renderbuffer *rb,
GLint x, GLint y, GLsizei width)
{
if (!intel_copy_texsubimage(intel_context(ctx),
intel_texture_image(texImage),
xoffset, 0,
intel_renderbuffer(rb), x, y, width, 1)) {
fallback_debug("%s - fallback to swrast\n", __FUNCTION__);
_mesa_meta_CopyTexSubImage1D(ctx, texImage, xoffset,
rb, x, y, width);
}
}
/**
* Called via ctx->Driver.GenerateMipmap()
* This is basically a wrapper for _mesa_meta_GenerateMipmap() which checks
* if we'll be using software mipmap generation. In that case, we need to
* map/unmap the base level texture image.
*/
static void
intelGenerateMipmap(struct gl_context *ctx, GLenum target,
struct gl_texture_object *texObj)
{
if (_mesa_meta_check_generate_mipmap_fallback(ctx, target, texObj)) {
/* sw path: need to map texture images */
struct intel_context *intel = intel_context(ctx);
struct intel_texture_object *intelObj = intel_texture_object(texObj);
struct gl_texture_image *first_image = texObj->Image[0][texObj->BaseLevel];
fallback_debug("%s - fallback to swrast\n", __FUNCTION__);
intel_tex_map_level_images(intel, intelObj, texObj->BaseLevel);
_mesa_generate_mipmap(ctx, target, texObj);
intel_tex_unmap_level_images(intel, intelObj, texObj->BaseLevel);
if (!_mesa_is_format_compressed(first_image->TexFormat)) {
GLuint nr_faces = (texObj->Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
GLuint face, i;
/* Update the level information in our private data in the new images,
* since it didn't get set as part of a normal TexImage path.
*/
for (face = 0; face < nr_faces; face++) {
for (i = texObj->BaseLevel + 1; i < texObj->MaxLevel; i++) {
struct intel_texture_image *intelImage =
intel_texture_image(texObj->Image[face][i]);
if (!intelImage)
break;
intelImage->level = i;
intelImage->face = face;
/* Unreference the miptree to signal that the new Data is a
* bare pointer from mesa.
*/
intel_miptree_release(intel, &intelImage->mt);
}
}
}
}
else {
_mesa_meta_GenerateMipmap(ctx, target, texObj);
}
}
static void
intelCopyTexSubImage2D(struct gl_context * 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);
/* Need to check texture is compatible with source format.
*/
if (!intel_copy_texsubimage(intel_context(ctx),
intel_texture_image(texImage),
xoffset, yoffset, x, y, width, height)) {
fallback_debug("%s - fallback to swrast\n", __FUNCTION__);
_mesa_meta_CopyTexSubImage2D(ctx, target, level,
xoffset, yoffset, x, y, width, height);
}
}
/**
* CopyPixels with the blitter. Don't support zooming, pixel transfer, etc.
*/
static GLboolean
do_blit_copypixels(struct gl_context * ctx,
GLint srcx, GLint srcy,
GLsizei width, GLsizei height,
GLint dstx, GLint dsty, GLenum type)
{
struct intel_context *intel = intel_context(ctx);
struct gl_framebuffer *fb = ctx->DrawBuffer;
struct gl_framebuffer *read_fb = ctx->ReadBuffer;
GLint orig_dstx;
GLint orig_dsty;
GLint orig_srcx;
GLint orig_srcy;
GLboolean flip = GL_FALSE;
struct intel_renderbuffer *draw_irb = NULL;
struct intel_renderbuffer *read_irb = NULL;
/* Update draw buffer bounds */
_mesa_update_state(ctx);
switch (type) {
case GL_COLOR:
if (fb->_NumColorDrawBuffers != 1) {
fallback_debug("glCopyPixels() fallback: MRT\n");
return GL_FALSE;
}
draw_irb = intel_renderbuffer(fb->_ColorDrawBuffers[0]);
read_irb = intel_renderbuffer(read_fb->_ColorReadBuffer);
break;
case GL_DEPTH_STENCIL_EXT:
draw_irb = intel_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer);
read_irb =
intel_renderbuffer(read_fb->Attachment[BUFFER_DEPTH].Renderbuffer);
break;
case GL_DEPTH:
fallback_debug("glCopyPixels() fallback: GL_DEPTH\n");
return GL_FALSE;
case GL_STENCIL:
fallback_debug("glCopyPixels() fallback: GL_STENCIL\n");
return GL_FALSE;
default:
fallback_debug("glCopyPixels(): Unknown type\n");
return GL_FALSE;
}
if (!draw_irb) {
fallback_debug("glCopyPixels() fallback: missing draw buffer\n");
return GL_FALSE;
}
if (!read_irb) {
fallback_debug("glCopyPixels() fallback: missing read buffer\n");
return GL_FALSE;
}
if (draw_irb->Base.Format != read_irb->Base.Format &&
!(draw_irb->Base.Format == MESA_FORMAT_XRGB8888 &&
read_irb->Base.Format == MESA_FORMAT_ARGB8888)) {
fallback_debug("glCopyPixels() fallback: mismatched formats (%s -> %s\n",
_mesa_get_format_name(read_irb->Base.Format),
_mesa_get_format_name(draw_irb->Base.Format));
return GL_FALSE;
}
/* Copypixels can be more than a straight copy. Ensure all the
* extra operations are disabled:
*/
if (!intel_check_copypixel_blit_fragment_ops(ctx) ||
ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F)
return GL_FALSE;
intel_prepare_render(intel);
intel_flush(&intel->ctx);
/* Clip to destination buffer. */
orig_dstx = dstx;
orig_dsty = dsty;
if (!_mesa_clip_to_region(fb->_Xmin, fb->_Ymin,
fb->_Xmax, fb->_Ymax,
&dstx, &dsty, &width, &height))
goto out;
/* Adjust src coords for our post-clipped destination origin */
srcx += dstx - orig_dstx;
srcy += dsty - orig_dsty;
/* Clip to source buffer. */
orig_srcx = srcx;
orig_srcy = srcy;
if (!_mesa_clip_to_region(0, 0,
read_fb->Width, read_fb->Height,
&srcx, &srcy, &width, &height))
goto out;
/* Adjust dst coords for our post-clipped source origin */
dstx += srcx - orig_srcx;
dsty += srcy - orig_srcy;
/* Flip dest Y if it's a window system framebuffer. */
if (fb->Name == 0) {
/* copypixels to a window system framebuffer */
dsty = fb->Height - dsty - height;
flip = !flip;
}
/* Flip source Y if it's a window system framebuffer. */
if (read_fb->Name == 0) {
srcy = read_fb->Height - srcy - height;
flip = !flip;
}
srcx += read_irb->draw_x;
srcy += read_irb->draw_y;
dstx += draw_irb->draw_x;
dsty += draw_irb->draw_y;
if (!intel_region_copy(intel,
draw_irb->region, 0, dstx, dsty,
read_irb->region, 0, srcx, srcy,
width, height, flip,
ctx->Color.ColorLogicOpEnabled ?
ctx->Color.LogicOp : GL_COPY)) {
DBG("%s: blit failure\n", __FUNCTION__);
return GL_FALSE;
}
out:
intel_check_front_buffer_rendering(intel);
DBG("%s: success\n", __FUNCTION__);
return GL_TRUE;
}