/**
* Prepare the renderer for textured drawing.
*/
VGboolean renderer_drawtex_begin(struct renderer *renderer,
struct pipe_sampler_view *src)
{
assert(renderer->state == RENDERER_STATE_INIT);
if (!renderer_can_support(renderer, src->texture, PIPE_BIND_SAMPLER_VIEW))
return VG_FALSE;
cso_save_blend(renderer->cso);
cso_save_samplers(renderer->cso, PIPE_SHADER_FRAGMENT);
cso_save_sampler_views(renderer->cso, PIPE_SHADER_FRAGMENT);
cso_save_fragment_shader(renderer->cso);
cso_save_vertex_shader(renderer->cso);
renderer_set_blend(renderer, ~0);
renderer_set_samplers(renderer, 1, &src);
renderer_set_fs(renderer, RENDERER_FS_TEXTURE);
renderer_set_vs(renderer, RENDERER_VS_TEXTURE);
renderer_set_mvp(renderer, NULL);
/* remember the texture size */
renderer->u.drawtex.tex_width = src->texture->width0;
renderer->u.drawtex.tex_height = src->texture->height0;
renderer->state = RENDERER_STATE_DRAWTEX;
return VG_TRUE;
}
/**
* Prepare the renderer for copying.
*/
VGboolean renderer_copy_begin(struct renderer *renderer,
struct pipe_surface *dst,
VGboolean y0_top,
struct pipe_sampler_view *src)
{
assert(renderer->state == RENDERER_STATE_INIT);
/* sanity check */
if (!renderer_can_support(renderer,
dst->texture, PIPE_BIND_RENDER_TARGET) ||
!renderer_can_support(renderer,
src->texture, PIPE_BIND_SAMPLER_VIEW))
return VG_FALSE;
cso_save_framebuffer(renderer->cso);
cso_save_viewport(renderer->cso);
cso_save_blend(renderer->cso);
cso_save_samplers(renderer->cso, PIPE_SHADER_FRAGMENT);
cso_save_sampler_views(renderer->cso, PIPE_SHADER_FRAGMENT);
cso_save_fragment_shader(renderer->cso);
cso_save_vertex_shader(renderer->cso);
renderer_set_target(renderer, dst, NULL, y0_top);
renderer_set_blend(renderer, ~0);
renderer_set_samplers(renderer, 1, &src);
renderer_set_fs(renderer, RENDERER_FS_TEXTURE);
renderer_set_vs(renderer, RENDERER_VS_TEXTURE);
renderer_set_mvp(renderer, NULL);
/* remember the texture size */
renderer->u.copy.tex_width = src->texture->width0;
renderer->u.copy.tex_height = src->texture->height0;
renderer->state = RENDERER_STATE_COPY;
return VG_TRUE;
}
