[PATCH] wined3d: Add support for GL_EXT_texture_shadow_lod.
Józef Kucia
jkucia at codeweavers.com
Thu Aug 1 07:51:18 CDT 2019
Signed-off-by: Józef Kucia <jkucia at codeweavers.com>
---
Tested with Mesa i965 driver.
---
dlls/wined3d/adapter_gl.c | 1 +
dlls/wined3d/glsl_shader.c | 8 ++++++--
dlls/wined3d/wined3d_gl.h | 1 +
3 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/dlls/wined3d/adapter_gl.c b/dlls/wined3d/adapter_gl.c
index dd357e62510c..4f4b54ee028f 100644
--- a/dlls/wined3d/adapter_gl.c
+++ b/dlls/wined3d/adapter_gl.c
@@ -200,6 +200,7 @@ static const struct wined3d_extension_map gl_extension_map[] =
{"GL_EXT_texture_integer", EXT_TEXTURE_INTEGER },
{"GL_EXT_texture_lod_bias", EXT_TEXTURE_LOD_BIAS },
{"GL_EXT_texture_mirror_clamp", EXT_TEXTURE_MIRROR_CLAMP },
+ {"GL_EXT_texture_shadow_lod", EXT_TEXTURE_SHADOW_LOD },
{"GL_EXT_texture_shared_exponent", EXT_TEXTURE_SHARED_EXPONENT },
{"GL_EXT_texture_snorm", EXT_TEXTURE_SNORM },
{"GL_EXT_texture_sRGB", EXT_TEXTURE_SRGB },
diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index d5003293e6df..d2a55b83df38 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -6007,7 +6007,7 @@ static void shader_glsl_sample(const struct wined3d_shader_instruction *ins)
* comparison for array textures and cube textures. We use textureGrad*()
* to implement sample_c_lz.
*/
-static void shader_glsl_gen_sample_c_lz(const struct wined3d_shader_instruction *ins,
+static void shader_glsl_gen_sample_c_lz_emulation(const struct wined3d_shader_instruction *ins,
unsigned int sampler_bind_idx, const struct glsl_sample_function *sample_function,
unsigned int coord_size, const char *coord_param, const char *ref_param)
{
@@ -6036,6 +6036,7 @@ static void shader_glsl_gen_sample_c_lz(const struct wined3d_shader_instruction
static void shader_glsl_sample_c(const struct wined3d_shader_instruction *ins)
{
+ const struct wined3d_gl_info *gl_info = ins->ctx->gl_info;
unsigned int resource_idx, sampler_idx, sampler_bind_idx;
const struct wined3d_shader_resource_info *resource_info;
struct glsl_src_param coord_param, compare_param;
@@ -6064,10 +6065,11 @@ static void shader_glsl_sample_c(const struct wined3d_shader_instruction *ins)
shader_glsl_add_src_param(ins, &ins->src[3], WINED3DSP_WRITEMASK_0, &compare_param);
sampler_bind_idx = shader_glsl_find_sampler(&ins->ctx->reg_maps->sampler_map, resource_idx, sampler_idx);
if (ins->handler_idx == WINED3DSIH_SAMPLE_C_LZ
+ && !gl_info->supported[EXT_TEXTURE_SHADOW_LOD]
&& (resource_info->type == WINED3D_SHADER_RESOURCE_TEXTURE_2DARRAY
|| resource_info->type == WINED3D_SHADER_RESOURCE_TEXTURE_CUBE))
{
- shader_glsl_gen_sample_c_lz(ins, sampler_bind_idx, &sample_function,
+ shader_glsl_gen_sample_c_lz_emulation(ins, sampler_bind_idx, &sample_function,
coord_size, coord_param.param_str, compare_param.param_str);
}
else
@@ -7453,6 +7455,8 @@ static void shader_glsl_enable_extensions(struct wined3d_string_buffer *buffer,
shader_addline(buffer, "#extension GL_EXT_gpu_shader4 : enable\n");
if (gl_info->supported[EXT_TEXTURE_ARRAY])
shader_addline(buffer, "#extension GL_EXT_texture_array : enable\n");
+ if (gl_info->supported[EXT_TEXTURE_SHADOW_LOD])
+ shader_addline(buffer, "#extension GL_EXT_texture_shadow_lod : enable\n");
}
static void shader_glsl_generate_color_output(struct wined3d_string_buffer *buffer,
diff --git a/dlls/wined3d/wined3d_gl.h b/dlls/wined3d/wined3d_gl.h
index 0e5ae5e17213..678ad1a4ef24 100644
--- a/dlls/wined3d/wined3d_gl.h
+++ b/dlls/wined3d/wined3d_gl.h
@@ -179,6 +179,7 @@ enum wined3d_gl_extension
EXT_TEXTURE_INTEGER,
EXT_TEXTURE_LOD_BIAS,
EXT_TEXTURE_MIRROR_CLAMP,
+ EXT_TEXTURE_SHADOW_LOD,
EXT_TEXTURE_SHARED_EXPONENT,
EXT_TEXTURE_SNORM,
EXT_TEXTURE_SRGB,
--
2.21.0
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