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r300: Add blend color.

This commit is contained in:
Corbin Simpson 2009-01-17 02:25:52 -08:00
parent a08a830fd3
commit f3b53a5cb6
3 changed files with 46 additions and 4 deletions
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2
src/gallium/drivers/r300/r300_context.c
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@ -27,6 +27,7 @@ static void r300_destroy_context(struct pipe_context* context) {
draw_destroy(r300->draw);
FREE(r300->blend_color_state);
FREE(r300->scissor_state);
FREE(r300);
}
@ -48,6 +49,7 @@ struct pipe_context* r300_create_context(struct pipe_screen* screen,
r300->draw = draw_create();
r300->blend_color_state = CALLOC_STRUCT(r300_blend_color_state);
r300->scissor_state = CALLOC_STRUCT(r300_scissor_state);
r300_init_surface_functions(r300);

19
src/gallium/drivers/r300/r300_context.h
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@ -36,6 +36,14 @@ struct r300_blend_state {
uint32_t dither; /* R300_RB3D_DITHER_CTL: 0x4e50 */
};
struct r300_blend_color_state {
/* RV515 and earlier */
uint32_t blend_color; /* R300_RB3D_BLEND_COLOR: 0x4e10 */
/* R520 and newer */
uint32_t blend_color_red_alpha; /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
};
struct r300_dsa_state {
uint32_t alpha_function; /* R300_FG_ALPHA_FUNC: 0x4bd4 */
uint32_t alpha_reference; /* R500_FG_ALPHA_VALUE: 0x4be0 */
@ -60,10 +68,11 @@ struct r300_scissor_state {
uint32_t scissor_bottom_right; /* R300_SC_SCISSORS_BR: 0x43e4 */
};
#define R300_NEW_BLEND 0x1
#define R300_NEW_DSA 0x2
#define R300_NEW_RS 0x4
#define R300_NEW_SCISSOR 0x8
#define R300_NEW_BLEND 0x01
#define R300_NEW_BLEND_COLOR 0x02
#define R300_NEW_DSA 0x04
#define R300_NEW_RS 0x08
#define R300_NEW_SCISSOR 0x10
struct r300_context {
/* Parent class */
@ -77,6 +86,8 @@ struct r300_context {
/* Various CSO state objects. */
/* Blend state. */
struct r300_blend_state* blend_state;
/* Blend color state. */
struct r300_blend_color_state* blend_color_state;
/* Depth, stencil, and alpha state. */
struct r300_dsa_state* dsa_state;
/* Rasterizer state. */

29
src/gallium/drivers/r300/r300_state.c
View File

@ -165,6 +165,33 @@ static void r300_delete_blend_state(struct pipe_context* pipe,
FREE(state);
}
/* Set blend color.
* Setup both R300 and R500 registers, figure out later which one to write. */
static void r300_set_blend_color(struct pipe_context* pipe,
const struct pipe_blend_color* color)
{
struct r300_context* r300 = r300_context(pipe);
uint32_t r, g, b, a;
ubyte ur, ug, ub, ua;
r = util_iround(color->color[0] * 1023.0f);
g = util_iround(color->color[1] * 1023.0f);
b = util_iround(color->color[2] * 1023.0f);
a = util_iround(color->color[3] * 1023.0f);
ur = float_to_ubyte(color->color[0]);
ug = float_to_ubyte(color->color[1]);
ub = float_to_ubyte(color->color[2]);
ua = float_to_ubyte(color->color[3]);
r300->blend_color_state->blend_color = (a << 24) | (r << 16) | (g << 8) | b;
r300->blend_color_state->blend_color_red_alpha = ur | (ua << 16);
r300->blend_color_state->blend_color_green_blue = ub | (ug << 16);
r300->dirty_state |= R300_NEW_BLEND_COLOR;
}
static uint32_t translate_depth_stencil_function(int zs_func) {
switch (zs_func) {
case PIPE_FUNC_NEVER:
@ -474,6 +501,8 @@ void r300_init_state_functions(struct r300_context* r300) {
r300->context.bind_blend_state = r300_bind_blend_state;
r300->context.delete_blend_state = r300_delete_blend_state;
r300->context.set_blend_color = r300_set_blend_color;
r300->context.create_rasterizer_state = r300_create_rs_state;
r300->context.bind_rasterizer_state = r300_bind_rs_state;
r300->context.delete_rasterizer_state = r300_delete_rs_state;