/**
* Add a renderbuffer to the framebuffer.
*/
static boolean
st_framebuffer_add_renderbuffer(struct st_framebuffer *stfb,
gl_buffer_index idx)
{
struct gl_renderbuffer *rb;
enum pipe_format format;
int samples;
boolean sw;
if (!stfb->iface)
return FALSE;
/* do not distinguish depth/stencil buffers */
if (idx == BUFFER_STENCIL)
idx = BUFFER_DEPTH;
switch (idx) {
case BUFFER_DEPTH:
format = stfb->iface->visual->depth_stencil_format;
sw = FALSE;
break;
case BUFFER_ACCUM:
format = stfb->iface->visual->accum_format;
sw = TRUE;
break;
default:
format = stfb->iface->visual->color_format;
sw = FALSE;
break;
}
if (format == PIPE_FORMAT_NONE)
return FALSE;
samples = stfb->iface->visual->samples;
if (!samples)
samples = st_get_msaa();
rb = st_new_renderbuffer_fb(format, samples, sw);
if (!rb)
return FALSE;
if (idx != BUFFER_DEPTH) {
_mesa_add_renderbuffer(&stfb->Base, idx, rb);
}
else {
if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0))
_mesa_add_renderbuffer(&stfb->Base, BUFFER_DEPTH, rb);
if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1))
_mesa_add_renderbuffer(&stfb->Base, BUFFER_STENCIL, rb);
}
return TRUE;
}
static struct st_context *
st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
{
uint i;
struct st_context *st = ST_CALLOC_STRUCT( st_context );
ctx->st = st;
st->ctx = ctx;
st->pipe = pipe;
/* XXX: this is one-off, per-screen init: */
st_debug_init();
/* state tracker needs the VBO module */
_vbo_CreateContext(ctx);
st->dirty.mesa = ~0;
st->dirty.st = ~0;
st->cso_context = cso_create_context(pipe);
st_init_atoms( st );
st_init_bitmap(st);
st_init_clear(st);
st_init_draw( st );
st_init_generate_mipmap(st);
st_init_blit(st);
if(pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
st->internal_target = PIPE_TEXTURE_2D;
else
st->internal_target = PIPE_TEXTURE_RECT;
for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
st->state.sampler_list[i] = &st->state.samplers[i];
for (i = 0; i < 3; i++) {
memset(&st->velems_util_draw[i], 0, sizeof(struct pipe_vertex_element));
st->velems_util_draw[i].src_offset = i * 4 * sizeof(float);
st->velems_util_draw[i].instance_divisor = 0;
st->velems_util_draw[i].vertex_buffer_index = 0;
st->velems_util_draw[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
}
/* we want all vertex data to be placed in buffer objects */
vbo_use_buffer_objects(ctx);
/* Need these flags:
*/
st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
st->pixel_xfer.cache = _mesa_new_program_cache();
st->force_msaa = st_get_msaa();
/* GL limits and extensions */
st_init_limits(st);
st_init_extensions(st);
return st;
}
