gallium/util: fix glClear with MRT by making the FS write to all cbufs

Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Marek Olšák 2013-01-14 17:07:58 +01:00
parent 2cd1407d2d
commit 355d463f73
6 changed files with 42 additions and 9 deletions

View file

@ -316,13 +316,39 @@ util_make_fragment_tex_shader_writestencil(struct pipe_context *pipe,
/**
* Make simple fragment color pass-through shader.
* Make simple fragment color pass-through shader that replicates OUT[0]
* to all bound colorbuffers.
*/
void *
util_make_fragment_passthrough_shader(struct pipe_context *pipe)
util_make_fragment_passthrough_shader(struct pipe_context *pipe,
int input_semantic,
int input_interpolate)
{
return util_make_fragment_cloneinput_shader(pipe, 1, TGSI_SEMANTIC_COLOR,
TGSI_INTERPOLATE_PERSPECTIVE);
static const char shader_templ[] =
"FRAG\n"
"PROPERTY FS_COLOR0_WRITES_ALL_CBUFS 1\n"
"DCL IN[0], %s[0], %s\n"
"DCL OUT[0], COLOR[0]\n"
"MOV OUT[0], IN[0]\n"
"END\n";
char text[sizeof(shader_templ)+100];
struct tgsi_token tokens[1000];
struct pipe_shader_state state = {tokens};
sprintf(text, shader_templ, tgsi_semantic_names[input_semantic],
tgsi_interpolate_names[input_interpolate]);
if (!tgsi_text_translate(text, tokens, Elements(tokens))) {
assert(0);
return NULL;
}
#if 0
tgsi_dump(state.tokens, 0);
#endif
return pipe->create_fs_state(pipe, &state);
}

View file

@ -87,7 +87,9 @@ util_make_fragment_tex_shader_writestencil(struct pipe_context *pipe,
extern void *
util_make_fragment_passthrough_shader(struct pipe_context *pipe);
util_make_fragment_passthrough_shader(struct pipe_context *pipe,
int input_semantic,
int input_interpolate);
extern void *

View file

@ -308,7 +308,8 @@ static void renderer_set_fs(struct renderer *r, RendererFs id)
switch (id) {
case RENDERER_FS_COLOR:
fs = util_make_fragment_passthrough_shader(r->pipe);
fs = util_make_fragment_passthrough_shader(r->pipe,
TGSI_SEMANTIC_COLOR, TGSI_INTERPOLATE_PERSPECTIVE);
break;
case RENDERER_FS_TEXTURE:
fs = util_make_fragment_tex_shader(r->pipe,

View file

@ -216,7 +216,8 @@ static void init_prog(struct program *p)
}
/* fragment shader */
p->fs = util_make_fragment_passthrough_shader(p->pipe);
p->fs = util_make_fragment_passthrough_shader(p->pipe,
TGSI_SEMANTIC_COLOR, TGSI_INTERPOLATE_PERSPECTIVE);
}
static void close_prog(struct program *p)

View file

@ -59,7 +59,8 @@ get_passthrough_fs(struct st_context *st)
{
if (!st->passthrough_fs) {
st->passthrough_fs =
util_make_fragment_passthrough_shader(st->pipe);
util_make_fragment_passthrough_shader(st->pipe, TGSI_SEMANTIC_COLOR,
TGSI_INTERPOLATE_PERSPECTIVE);
}
return st->passthrough_fs;

View file

@ -96,7 +96,9 @@ static INLINE void
set_fragment_shader(struct st_context *st)
{
if (!st->clear.fs)
st->clear.fs = util_make_fragment_passthrough_shader(st->pipe);
st->clear.fs =
util_make_fragment_passthrough_shader(st->pipe, TGSI_SEMANTIC_COLOR,
TGSI_INTERPOLATE_CONSTANT);
cso_set_fragment_shader_handle(st->cso_context, st->clear.fs);
}