/**
* Add a color renderbuffer on demand.
*/
boolean
st_manager_add_color_renderbuffer(struct st_context *st,
struct gl_framebuffer *fb,
gl_buffer_index idx)
{
struct st_framebuffer *stfb = st_ws_framebuffer(fb);
/* FBO */
if (!stfb)
return FALSE;
if (stfb->Base.Attachment[idx].Renderbuffer)
return TRUE;
switch (idx) {
case BUFFER_FRONT_LEFT:
case BUFFER_BACK_LEFT:
case BUFFER_FRONT_RIGHT:
case BUFFER_BACK_RIGHT:
break;
default:
return FALSE;
break;
}
if (!st_framebuffer_add_renderbuffer(stfb, idx))
return FALSE;
st_framebuffer_update_attachments(stfb);
st_invalidate_state(st->ctx, _NEW_BUFFERS);
return TRUE;
}
/**
* Called via ctx->Driver.FinishRenderTexture.
*/
static void
st_finish_render_texture(struct gl_context *ctx, struct gl_renderbuffer *rb)
{
struct st_renderbuffer *strb = st_renderbuffer(rb);
if (!strb)
return;
strb->is_rtt = FALSE;
/* restore previous framebuffer state */
st_invalidate_state(ctx, _NEW_BUFFERS);
}
/**
* Called via ctx->Driver.FinishRenderTexture.
*/
static void
st_finish_render_texture(struct gl_context *ctx,
struct gl_renderbuffer_attachment *att)
{
struct st_renderbuffer *strb = st_renderbuffer(att->Renderbuffer);
if (!strb)
return;
strb->rtt = NULL;
/* restore previous framebuffer state */
st_invalidate_state(ctx, _NEW_BUFFERS);
}
/**
* Called by ctx->Driver.RenderTexture
*/
static void
st_render_texture(struct gl_context *ctx,
struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct gl_renderbuffer *rb = att->Renderbuffer;
struct st_renderbuffer *strb = st_renderbuffer(rb);
struct pipe_resource *pt;
if (!st_finalize_texture(ctx, pipe, att->Texture))
return;
pt = st_get_texobj_resource(att->Texture);
assert(pt);
/* point renderbuffer at texobject */
strb->is_rtt = TRUE;
strb->rtt_face = att->CubeMapFace;
strb->rtt_slice = att->Zoffset;
strb->rtt_layered = att->Layered;
pipe_resource_reference(&strb->texture, pt);
pipe_surface_release(pipe, &strb->surface);
st_update_renderbuffer_surface(st, strb);
strb->Base.Format = st_pipe_format_to_mesa_format(pt->format);
/* Invalidate buffer state so that the pipe's framebuffer state
* gets updated.
* That's where the new renderbuffer (which we just created) gets
* passed to the pipe as a (color/depth) render target.
*/
st_invalidate_state(ctx, _NEW_BUFFERS);
/* Need to trigger a call to update_framebuffer() since we just
* attached a new renderbuffer.
*/
ctx->NewState |= _NEW_BUFFERS;
}
/**
* Add a color renderbuffer on demand.
*/
boolean
st_manager_add_color_renderbuffer(struct st_context *st,
struct gl_framebuffer *fb,
gl_buffer_index idx)
{
struct st_framebuffer *stfb = st_ws_framebuffer(fb);
/* FBO */
if (!stfb)
return FALSE;
if (stfb->Base.Attachment[idx].Renderbuffer)
return TRUE;
switch (idx) {
case BUFFER_FRONT_LEFT:
case BUFFER_BACK_LEFT:
case BUFFER_FRONT_RIGHT:
case BUFFER_BACK_RIGHT:
break;
default:
return FALSE;
break;
}
if (!st_framebuffer_add_renderbuffer(stfb, idx))
return FALSE;
st_framebuffer_update_attachments(stfb);
/*
* Force a call to the state tracker manager to validate the
* new renderbuffer. It might be that there is a window system
* renderbuffer available.
*/
if(stfb->iface)
stfb->iface_stamp = p_atomic_read(&stfb->iface->stamp) - 1;
st_invalidate_state(st->ctx, _NEW_BUFFERS);
return TRUE;
}
/**
* Called by ctx->Driver.RenderTexture
*/
static void
st_render_texture(struct gl_context *ctx,
struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct st_renderbuffer *strb;
struct gl_renderbuffer *rb;
struct pipe_resource *pt;
struct st_texture_object *stObj;
const struct gl_texture_image *texImage;
struct pipe_surface surf_tmpl;
if (!st_finalize_texture(ctx, pipe, att->Texture))
return;
pt = st_get_texobj_resource(att->Texture);
assert(pt);
/* get pointer to texture image we're rendeing to */
texImage = _mesa_get_attachment_teximage(att);
/* create new renderbuffer which wraps the texture image.
* Use the texture's name as the renderbuffer's name so that we have
* something that's non-zero (to determine vertical orientation) and
* possibly helpful for debugging.
*/
rb = st_new_renderbuffer(ctx, att->Texture->Name);
if (!rb) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glFramebufferTexture()");
return;
}
_mesa_reference_renderbuffer(&att->Renderbuffer, rb);
assert(rb->RefCount == 1);
rb->AllocStorage = NULL; /* should not get called */
strb = st_renderbuffer(rb);
assert(strb->Base.RefCount > 0);
/* get the texture for the texture object */
stObj = st_texture_object(att->Texture);
/* point renderbuffer at texobject */
strb->rtt = stObj;
strb->rtt_level = att->TextureLevel;
strb->rtt_face = att->CubeMapFace;
strb->rtt_slice = att->Zoffset;
rb->Width = texImage->Width2;
rb->Height = texImage->Height2;
rb->_BaseFormat = texImage->_BaseFormat;
rb->InternalFormat = texImage->InternalFormat;
pipe_resource_reference( &strb->texture, pt );
pipe_surface_release(pipe, &strb->surface);
assert(strb->rtt_level <= strb->texture->last_level);
/* new surface for rendering into the texture */
memset(&surf_tmpl, 0, sizeof(surf_tmpl));
surf_tmpl.format = ctx->Color.sRGBEnabled
? strb->texture->format : util_format_linear(strb->texture->format);
surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
surf_tmpl.u.tex.level = strb->rtt_level;
surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;
surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;
strb->surface = pipe->create_surface(pipe,
strb->texture,
&surf_tmpl);
strb->Base.Format = st_pipe_format_to_mesa_format(pt->format);
/* Invalidate buffer state so that the pipe's framebuffer state
* gets updated.
* That's where the new renderbuffer (which we just created) gets
* passed to the pipe as a (color/depth) render target.
*/
st_invalidate_state(ctx, _NEW_BUFFERS);
/* Need to trigger a call to update_framebuffer() since we just
* attached a new renderbuffer.
*/
ctx->NewState |= _NEW_BUFFERS;
}
/**
* Called by ctx->Driver.RenderTexture
*/
static void
st_render_texture(struct gl_context *ctx,
struct gl_framebuffer *fb,
struct gl_renderbuffer_attachment *att)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct gl_renderbuffer *rb = att->Renderbuffer;
struct st_renderbuffer *strb = st_renderbuffer(rb);
struct pipe_resource *pt;
struct st_texture_object *stObj;
const struct gl_texture_image *texImage;
struct pipe_surface surf_tmpl;
if (!st_finalize_texture(ctx, pipe, att->Texture))
return;
pt = st_get_texobj_resource(att->Texture);
assert(pt);
/* get pointer to texture image we're rendeing to */
texImage = _mesa_get_attachment_teximage(att);
/* get the texture for the texture object */
stObj = st_texture_object(att->Texture);
/* point renderbuffer at texobject */
strb->rtt = stObj;
strb->rtt_level = att->TextureLevel;
strb->rtt_face = att->CubeMapFace;
strb->rtt_slice = att->Zoffset;
pipe_resource_reference( &strb->texture, pt );
pipe_surface_release(pipe, &strb->surface);
assert(strb->rtt_level <= strb->texture->last_level);
/* new surface for rendering into the texture */
memset(&surf_tmpl, 0, sizeof(surf_tmpl));
surf_tmpl.format = ctx->Color.sRGBEnabled
? strb->texture->format : util_format_linear(strb->texture->format);
surf_tmpl.u.tex.level = strb->rtt_level;
surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice;
surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice;
strb->surface = pipe->create_surface(pipe,
strb->texture,
&surf_tmpl);
strb->Base.Format = st_pipe_format_to_mesa_format(pt->format);
/* Invalidate buffer state so that the pipe's framebuffer state
* gets updated.
* That's where the new renderbuffer (which we just created) gets
* passed to the pipe as a (color/depth) render target.
*/
st_invalidate_state(ctx, _NEW_BUFFERS);
/* Need to trigger a call to update_framebuffer() since we just
* attached a new renderbuffer.
*/
ctx->NewState |= _NEW_BUFFERS;
}
