diff options
| -rw-r--r-- | src/mesa/drivers/dri/nouveau/nv04_state_frag.c | 76 |
1 files changed, 46 insertions, 30 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nv04_state_frag.c b/src/mesa/drivers/dri/nouveau/nv04_state_frag.c index 34ee2962023..d7c86d4178d 100644 --- a/src/mesa/drivers/dri/nouveau/nv04_state_frag.c +++ b/src/mesa/drivers/dri/nouveau/nv04_state_frag.c @@ -41,6 +41,7 @@ NV04_MULTITEX_TRIANGLE_COMBINE_COLOR_ALPHA0 struct combiner_state { + GLcontext *ctx; int unit; GLboolean alpha; @@ -59,11 +60,12 @@ struct combiner_state { /* Initialize a combiner_state struct from the texture unit * context. */ -#define INIT_COMBINER(chan, rc, i) do { \ +#define INIT_COMBINER(chan, ctx, rc, i) do { \ struct gl_tex_env_combine_state *c = \ ctx->Texture.Unit[i]._CurrentCombine; \ - (rc)->alpha = __INIT_COMBINER_ALPHA_##chan; \ + (rc)->ctx = ctx; \ (rc)->unit = i; \ + (rc)->alpha = __INIT_COMBINER_ALPHA_##chan; \ (rc)->mode = c->Mode##chan; \ (rc)->source = c->Source##chan; \ (rc)->operand = c->Operand##chan; \ @@ -72,11 +74,11 @@ struct combiner_state { } while (0) /* Get the combiner source for the specified EXT_texture_env_combine - * argument. */ + * source. */ static uint32_t -get_arg_source(struct combiner_state *rc, int arg) +get_input_source(struct combiner_state *rc, int source) { - switch (rc->source[arg]) { + switch (source) { case GL_TEXTURE: return rc->unit ? COMBINER_SOURCE(TEXTURE1) : COMBINER_SOURCE(TEXTURE0); @@ -103,38 +105,53 @@ get_arg_source(struct combiner_state *rc, int arg) } /* Get the (possibly inverted) combiner input mapping for the - * specified argument. */ + * specified EXT_texture_env_combine operand. */ #define INVERT 0x1 static uint32_t -get_arg_mapping(struct combiner_state *rc, int arg, int flags) +get_input_mapping(struct combiner_state *rc, int operand, int flags) { int map = 0; - switch (rc->operand[arg]) { - case GL_SRC_COLOR: - case GL_ONE_MINUS_SRC_COLOR: - break; + if (!is_color_operand(operand) && !rc->alpha) + map |= COMBINER_ALPHA; - case GL_SRC_ALPHA: - case GL_ONE_MINUS_SRC_ALPHA: - map |= rc->alpha ? 0 : COMBINER_ALPHA; - break; - } + if (is_negative_operand(operand) == !(flags & INVERT)) + map |= COMBINER_INVERT; - switch (rc->operand[arg]) { - case GL_SRC_COLOR: - case GL_SRC_ALPHA: - map |= flags & INVERT ? COMBINER_INVERT : 0; - break; + return map; +} - case GL_ONE_MINUS_SRC_COLOR: - case GL_ONE_MINUS_SRC_ALPHA: - map |= flags & INVERT ? 0 : COMBINER_INVERT; - break; +static uint32_t +get_input_arg(struct combiner_state *rc, int arg, int flags) +{ + int source = rc->source[arg]; + int operand = rc->operand[arg]; + + /* Fake several unsupported texture formats. */ + if (is_texture_source(source)) { + int i = (source == GL_TEXTURE ? + rc->unit : source - GL_TEXTURE0); + struct gl_texture_object *t = rc->ctx->Texture.Unit[i]._Current; + gl_format format = t->Image[0][t->BaseLevel]->TexFormat; + + if (format == MESA_FORMAT_A8) { + /* Emulated using I8. */ + if (is_color_operand(operand)) + return COMBINER_SOURCE(ZERO) | + get_input_mapping(rc, operand, flags); + + } else if (format == MESA_FORMAT_L8) { + /* Emulated using I8. */ + if (!is_color_operand(operand)) + return COMBINER_SOURCE(ZERO) | + get_input_mapping(rc, operand, + flags ^ INVERT); + } } - return map; + return get_input_source(rc, source) | + get_input_mapping(rc, operand, flags); } /* Bind the combiner input <in> to the combiner source <src>, @@ -146,8 +163,7 @@ get_arg_mapping(struct combiner_state *rc, int arg, int flags) /* Bind the combiner input <in> to the EXT_texture_env_combine * argument <arg>, possibly inverted. */ #define INPUT_ARG(rc, in, arg, flags) \ - (rc)->hw |= (get_arg_source(rc, arg) | \ - get_arg_mapping(rc, arg, flags)) << COMBINER_SHIFT(in) + (rc)->hw |= get_input_arg(rc, arg, flags) << COMBINER_SHIFT(in) #define UNSIGNED_OP(rc) \ (rc)->hw |= ((rc)->logscale ? \ @@ -222,10 +238,10 @@ nv04_emit_tex_env(GLcontext *ctx, int emit) /* Compute the new combiner state. */ if (ctx->Texture.Unit[i]._ReallyEnabled) { - INIT_COMBINER(A, &rc_a, i); + INIT_COMBINER(A, ctx, &rc_a, i); setup_combiner(&rc_a); - INIT_COMBINER(RGB, &rc_c, i); + INIT_COMBINER(RGB, ctx, &rc_c, i); setup_combiner(&rc_c); } else { |