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authorCorbin Simpson <[email protected]>2009-02-28 09:12:16 -0800
committerCorbin Simpson <[email protected]>2009-02-28 09:56:35 -0800
commitd1559eac6d7f9ee8757a2adc6271eb951efc546f (patch)
tree46710fbdfd4ecfc56aba0dbdf539ebe260fa0d19 /src/gallium/drivers/r300/r300_state.c
parent3673fc35d68edf55d0b1dc0fb4c3628f228eb9d6 (diff)
r300-gallium: Be more Gallium-ish in some of the math.
Diffstat (limited to 'src/gallium/drivers/r300/r300_state.c')
-rw-r--r--src/gallium/drivers/r300/r300_state.c32
1 files changed, 7 insertions, 25 deletions
diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c
index f5635591b64..693f3c1c584 100644
--- a/src/gallium/drivers/r300/r300_state.c
+++ b/src/gallium/drivers/r300/r300_state.c
@@ -32,21 +32,7 @@
#include "r300_state_shader.h"
/* r300_state: Functions used to intialize state context by translating
- * Gallium state objects into semi-native r300 state objects.
- *
- * XXX break this file up into pieces if it gets too big! */
-
-/* Pack a float into a dword. */
-static uint32_t pack_float_32(float f)
-{
- union {
- float f;
- uint32_t u;
- } u;
-
- u.f = f;
- return u.u;
-}
+ * Gallium state objects into semi-native r300 state objects. */
/* Create a new blend state based on the CSO blend state.
*
@@ -114,21 +100,17 @@ 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;
+ util_pack_color(color->color, PIPE_FORMAT_A8R8G8B8_UNORM,
+ &r300->blend_color_state->blend_color);
+ /* XXX this is wrong */
r300->blend_color_state->blend_color_red_alpha = ur | (ua << 16);
r300->blend_color_state->blend_color_green_blue = ub | (ug << 16);
@@ -391,15 +373,15 @@ static void* r300_create_rs_state(struct pipe_context* pipe,
if (rs->polygon_offset_enable) {
rs->depth_offset_front = rs->depth_offset_back =
- pack_float_32(state->offset_units);
+ fui(state->offset_units);
rs->depth_scale_front = rs->depth_scale_back =
- pack_float_32(state->offset_scale);
+ fui(state->offset_scale);
}
if (state->line_stipple_enable) {
rs->line_stipple_config =
R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE |
- (pack_float_32((float)state->line_stipple_factor) &
+ (fui((float)state->line_stipple_factor) &
R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK);
/* XXX this might need to be scaled up */
rs->line_stipple_value = state->line_stipple_pattern;