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libobs/graphics: Add gs_effect_set_color

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Convenience function for setting a color (in hex format, e.g.
0xAARRGGBB)
This commit is contained in:
jp9000 2017-12-01 11:55:55 -08:00
parent 5da7a90b8b
commit 78411de75e
3 changed files with 19 additions and 0 deletions
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10
docs/sphinx/reference-libobs-graphics-effects.rst
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@ -288,6 +288,16 @@ HLSL format.
---------------------
.. function:: void gs_effect_set_color(gs_eparam_t *param, uint32_t argb)
Convenience function for setting a color value via an integer value.
:param param: Effect parameter
:param argb: Integer color value (i.e. hex value would be
0xAARRGGBB)
---------------------
.. function:: void gs_effect_set_texture(gs_eparam_t *param, gs_texture_t *val)
Sets a texture parameter.

7
libobs/graphics/effect.c
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@ -368,6 +368,13 @@ void gs_effect_set_vec4(gs_eparam_t *param, const struct vec4 *val)
effect_setval_inline(param, val, sizeof(struct vec4));
}
void gs_effect_set_color(gs_eparam_t *param, uint32_t argb)
{
struct vec4 v_color;
vec4_from_bgra(&v_color, argb);
effect_setval_inline(param, &v_color, sizeof(struct vec4));
}
void gs_effect_set_texture(gs_eparam_t *param, gs_texture_t *val)
{
effect_setval_inline(param, &val, sizeof(gs_texture_t*));

2
libobs/graphics/graphics.h
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@ -398,6 +398,8 @@ EXPORT void gs_effect_set_default(gs_eparam_t *param);
EXPORT void gs_effect_set_next_sampler(gs_eparam_t *param,
gs_samplerstate_t *sampler);
EXPORT void gs_effect_set_color(gs_eparam_t *param, uint32_t argb);
/* ---------------------------------------------------
* texture render helper functions
* --------------------------------------------------- */