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authorVadim Girlin <[email protected]>2011-06-24 20:29:13 +0400
committerJerome Glisse <[email protected]>2011-06-24 15:23:41 -0400
commiteafd331cf3b024001abd3f64861f41cd33a9acb2 (patch)
tree11355102a6fd54cce563391732aa17dc6117cf91 /src/gallium/drivers/r600/r600_shader.c
parentd81126b714cd4de0ab036bb22bf4103f5fcec015 (diff)
r600g: implement fragment and vertex color clamp
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=38440 Signed-off-by: Vadim Girlin <[email protected]>
Diffstat (limited to 'src/gallium/drivers/r600/r600_shader.c')
-rw-r--r--src/gallium/drivers/r600/r600_shader.c52
1 files changed, 46 insertions, 6 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 904cc6994eb..2e5d4a6c49f 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -118,9 +118,9 @@ static int r600_pipe_shader(struct pipe_context *ctx, struct r600_pipe_shader *s
return 0;
}
-static int r600_shader_from_tgsi(const struct tgsi_token *tokens, struct r600_shader *shader);
+static int r600_shader_from_tgsi(struct r600_pipe_context * rctx, struct r600_pipe_shader *pipeshader);
-int r600_pipe_shader_create(struct pipe_context *ctx, struct r600_pipe_shader *shader, const struct tgsi_token *tokens)
+int r600_pipe_shader_create(struct pipe_context *ctx, struct r600_pipe_shader *shader)
{
static int dump_shaders = -1;
struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
@@ -133,10 +133,10 @@ int r600_pipe_shader_create(struct pipe_context *ctx, struct r600_pipe_shader *s
if (dump_shaders) {
fprintf(stderr, "--------------------------------------------------------------\n");
- tgsi_dump(tokens, 0);
+ tgsi_dump(shader->tokens, 0);
}
shader->shader.family = r600_get_family(rctx->radeon);
- r = r600_shader_from_tgsi(tokens, &shader->shader);
+ r = r600_shader_from_tgsi(rctx, shader);
if (r) {
R600_ERR("translation from TGSI failed !\n");
return r;
@@ -159,6 +159,8 @@ void r600_pipe_shader_destroy(struct pipe_context *ctx, struct r600_pipe_shader
r600_bo_reference(rctx->radeon, &shader->bo, NULL);
r600_bc_clear(&shader->shader.bc);
+
+ memset(&shader->shader,0,sizeof(struct r600_shader));
}
/*
@@ -594,8 +596,10 @@ static int tgsi_split_literal_constant(struct r600_shader_ctx *ctx)
return 0;
}
-static int r600_shader_from_tgsi(const struct tgsi_token *tokens, struct r600_shader *shader)
+static int r600_shader_from_tgsi(struct r600_pipe_context * rctx, struct r600_pipe_shader *pipeshader)
{
+ struct r600_shader *shader = &pipeshader->shader;
+ struct tgsi_token *tokens = pipeshader->tokens;
struct tgsi_full_immediate *immediate;
struct tgsi_full_property *property;
struct r600_shader_ctx ctx;
@@ -616,6 +620,9 @@ static int r600_shader_from_tgsi(const struct tgsi_token *tokens, struct r600_sh
shader->processor_type = ctx.type;
ctx.bc->type = shader->processor_type;
+ shader->clamp_color = (((ctx.type == TGSI_PROCESSOR_FRAGMENT) && rctx->clamp_fragment_color) ||
+ ((ctx.type == TGSI_PROCESSOR_VERTEX) && rctx->clamp_vertex_color));
+
/* register allocations */
/* Values [0,127] correspond to GPR[0..127].
* Values [128,159] correspond to constant buffer bank 0
@@ -725,8 +732,41 @@ static int r600_shader_from_tgsi(const struct tgsi_token *tokens, struct r600_sh
goto out_err;
}
}
- /* export output */
+
noutput = shader->noutput;
+
+ /* clamp color outputs */
+ if (shader->clamp_color) {
+ for (i = 0; i < noutput; i++) {
+ if (shader->output[i].name == TGSI_SEMANTIC_COLOR ||
+ shader->output[i].name == TGSI_SEMANTIC_BCOLOR) {
+
+ int j;
+ for (j = 0; j < 4; j++) {
+ struct r600_bc_alu alu;
+ memset(&alu, 0, sizeof(struct r600_bc_alu));
+
+ /* MOV_SAT R, R */
+ alu.inst = BC_INST(ctx.bc, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MOV);
+ alu.dst.sel = shader->output[i].gpr;
+ alu.dst.chan = j;
+ alu.dst.write = 1;
+ alu.dst.clamp = 1;
+ alu.src[0].sel = alu.dst.sel;
+ alu.src[0].chan = j;
+
+ if (j == 3) {
+ alu.last = 1;
+ }
+ r = r600_bc_add_alu(ctx.bc, &alu);
+ if (r)
+ return r;
+ }
+ }
+ }
+ }
+
+ /* export output */
for (i = 0, pos0 = 0; i < noutput; i++) {
memset(&output[i], 0, sizeof(struct r600_bc_output));
output[i].gpr = shader->output[i].gpr;