static void
radeon_render_texture(struct gl_context * ctx,
struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct gl_texture_image *newImage
= att->Texture->Image[att->CubeMapFace][att->TextureLevel];
struct radeon_renderbuffer *rrb = radeon_renderbuffer(att->Renderbuffer);
radeon_texture_image *radeon_image;
GLuint imageOffset;
radeon_print(RADEON_TEXTURE, RADEON_TRACE,
"%s(%p, fb %p, rrb %p, att %p)\n",
__func__, ctx, fb, rrb, att);
(void) fb;
ASSERT(newImage);
radeon_image = (radeon_texture_image *)newImage;
if (!radeon_image->mt || newImage->Border != 0) {
/* Fallback on drawing to a texture without a miptree.
*/
_mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
_mesa_render_texture(ctx, fb, att);
return;
}
else if (!rrb) {
rrb = radeon_wrap_texture(ctx, newImage);
if (rrb) {
/* bind the wrapper to the attachment point */
_mesa_reference_renderbuffer(&att->Renderbuffer, &rrb->base);
}
else {
/* fallback to software rendering */
_mesa_render_texture(ctx, fb, att);
return;
}
}
if (!radeon_update_wrapper(ctx, rrb, newImage)) {
_mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
_mesa_render_texture(ctx, fb, att);
return;
}
DBG("Begin render texture tid %lx tex=%u w=%d h=%d refcount=%d\n",
_glthread_GetID(),
att->Texture->Name, newImage->Width, newImage->Height,
rrb->base.RefCount);
/* point the renderbufer's region to the texture image region */
if (rrb->bo != radeon_image->mt->bo) {
if (rrb->bo)
radeon_bo_unref(rrb->bo);
rrb->bo = radeon_image->mt->bo;
radeon_bo_ref(rrb->bo);
}
/* compute offset of the particular 2D image within the texture region */
imageOffset = radeon_miptree_image_offset(radeon_image->mt,
att->CubeMapFace,
att->TextureLevel);
if (att->Texture->Target == GL_TEXTURE_3D) {
imageOffset += radeon_image->mt->levels[att->TextureLevel].rowstride *
radeon_image->mt->levels[att->TextureLevel].height *
att->Zoffset;
}
/* store that offset in the region, along with the correct pitch for
* the image we are rendering to */
rrb->draw_offset = imageOffset;
rrb->pitch = radeon_image->mt->levels[att->TextureLevel].rowstride;
/* update drawing region, etc */
radeon_draw_buffer(ctx, fb);
}
/**
* Called by glFramebufferTexture[123]DEXT() (and other places) to
* prepare for rendering into texture memory. This might be called
* many times to choose different texture levels, cube faces, etc
* before intel_finish_render_texture() is ever called.
*/
static void
intel_render_texture(GLcontext * ctx,
struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct gl_texture_image *newImage
= att->Texture->Image[att->CubeMapFace][att->TextureLevel];
struct intel_renderbuffer *irb = intel_renderbuffer(att->Renderbuffer);
struct intel_texture_image *intel_image;
GLuint dst_x, dst_y;
(void) fb;
ASSERT(newImage);
intel_image = intel_texture_image(newImage);
if (!intel_image->mt) {
/* Fallback on drawing to a texture that doesn't have a miptree
* (has a border, width/height 0, etc.)
*/
_mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
_mesa_render_texture(ctx, fb, att);
return;
}
else if (!irb) {
irb = intel_wrap_texture(ctx, newImage);
if (irb) {
/* bind the wrapper to the attachment point */
_mesa_reference_renderbuffer(&att->Renderbuffer, &irb->Base);
}
else {
/* fallback to software rendering */
_mesa_render_texture(ctx, fb, att);
return;
}
}
if (!intel_update_wrapper(ctx, irb, newImage)) {
_mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
_mesa_render_texture(ctx, fb, att);
return;
}
DBG("Begin render texture tid %x tex=%u w=%d h=%d refcount=%d\n",
_glthread_GetID(),
att->Texture->Name, newImage->Width, newImage->Height,
irb->Base.RefCount);
/* point the renderbufer's region to the texture image region */
if (irb->region != intel_image->mt->region) {
if (irb->region)
intel_region_release(&irb->region);
intel_region_reference(&irb->region, intel_image->mt->region);
}
/* compute offset of the particular 2D image within the texture region */
intel_miptree_get_image_offset(intel_image->mt,
att->TextureLevel,
att->CubeMapFace,
att->Zoffset,
&dst_x, &dst_y);
intel_image->mt->region->draw_offset = (dst_y * intel_image->mt->pitch +
dst_x) * intel_image->mt->cpp;
intel_image->mt->region->draw_x = dst_x;
intel_image->mt->region->draw_y = dst_y;
intel_image->used_as_render_target = GL_TRUE;
/* update drawing region, etc */
intel_draw_buffer(ctx, fb);
}
/**
* Called by glFramebufferTexture[123]DEXT() (and other places) to
* prepare for rendering into texture memory. This might be called
* many times to choose different texture levels, cube faces, etc
* before intel_finish_render_texture() is ever called.
*/
static void
intel_render_texture(GLcontext * ctx,
struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct gl_texture_image *newImage
= att->Texture->Image[att->CubeMapFace][att->TextureLevel];
struct intel_renderbuffer *irb = intel_renderbuffer(att->Renderbuffer);
struct intel_texture_image *intel_image;
GLuint imageOffset;
(void) fb;
ASSERT(newImage);
if (!irb) {
irb = intel_wrap_texture(ctx, newImage);
if (irb) {
/* bind the wrapper to the attachment point */
_mesa_reference_renderbuffer(&att->Renderbuffer, &irb->Base);
}
else {
/* fallback to software rendering */
_mesa_render_texture(ctx, fb, att);
return;
}
} if (!intel_update_wrapper(ctx, irb, newImage)) {
_mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
_mesa_render_texture(ctx, fb, att);
return;
}
DBG("Begin render texture tid %x tex=%u w=%d h=%d refcount=%d\n",
_glthread_GetID(),
att->Texture->Name, newImage->Width, newImage->Height,
irb->Base.RefCount);
/* point the renderbufer's region to the texture image region */
intel_image = intel_texture_image(newImage);
if (irb->region != intel_image->mt->region) {
if (irb->region)
intel_region_release(&irb->region);
intel_region_reference(&irb->region, intel_image->mt->region);
}
/* compute offset of the particular 2D image within the texture region */
imageOffset = intel_miptree_image_offset(intel_image->mt,
att->CubeMapFace,
att->TextureLevel);
if (att->Texture->Target == GL_TEXTURE_3D) {
const GLuint *offsets = intel_miptree_depth_offsets(intel_image->mt,
att->TextureLevel);
imageOffset += offsets[att->Zoffset];
}
/* store that offset in the region */
intel_image->mt->region->draw_offset = imageOffset;
/* update drawing region, etc */
intel_draw_buffer(ctx, fb);
}
