[Mesa-dev] [PATCH] mesa: add glsl version query (v2)
Vadym Shovkoplias
vadim.shovkoplias at gmail.com
Wed Feb 7 10:01:17 UTC 2018
Add support for GL_NUM_SHADING_LANGUAGE_VERSIONS
and glGetStringi for GL_SHADING_LANGUAGE_VERSION
v2:
- Combine similar functionality into
_mesa_get_shading_language_version() function.
- Cahnge GLSL version return mechanism.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104915
Signed-off-by: Andriy Khulap <andriy.khulap at globallogic.com>
Signed-off-by: Vadym Shovkoplias <vadim.shovkoplias at gmail.com>
---
src/mapi/glapi/gen/GL4x.xml | 1 +
src/mesa/main/get.c | 4 +++
src/mesa/main/get_hash_params.py | 3 ++
src/mesa/main/getstring.c | 74 ++++++++++++++++++++++++++++++++++++++++
src/mesa/main/version.h | 5 +++
5 files changed, 87 insertions(+)
diff --git a/src/mapi/glapi/gen/GL4x.xml b/src/mapi/glapi/gen/GL4x.xml
index cd2e3b831e..2116286b35 100644
--- a/src/mapi/glapi/gen/GL4x.xml
+++ b/src/mapi/glapi/gen/GL4x.xml
@@ -42,6 +42,7 @@
<category name="4.3">
<enum name="SHADER_STORAGE_BARRIER_BIT" value="0x2000" />
+ <enum name="NUM_SHADING_LANGUAGE_VERSIONS" value="0x82E9" />
<enum name="MAX_COMBINED_SHADER_OUTPUT_RESOURCES" value="0x8F39" />
<enum name="SHADER_STORAGE_BUFFER" value="0x90D2"/>
<enum name="SHADER_STORAGE_BUFFER_BINDING" value="0x90D3"/>
diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index 516e8d174c..9a677a18d9 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -1084,6 +1084,10 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
v->value_int = 0;
}
break;
+ /* GL 4.3 */
+ case GL_NUM_SHADING_LANGUAGE_VERSIONS:
+ v->value_int = _mesa_get_shading_language_version(ctx, -1, NULL);
+ break;
/* GL_ARB_draw_indirect */
case GL_DRAW_INDIRECT_BUFFER_BINDING:
v->value_int = ctx->DrawIndirectBuffer->Name;
diff --git a/src/mesa/main/get_hash_params.py b/src/mesa/main/get_hash_params.py
index df082af207..be716f6f6e 100644
--- a/src/mesa/main/get_hash_params.py
+++ b/src/mesa/main/get_hash_params.py
@@ -543,6 +543,9 @@ descriptor=[
# GL_ARB_texture_cube_map_array
[ "TEXTURE_BINDING_CUBE_MAP_ARRAY_ARB", "LOC_CUSTOM, TYPE_INT, TEXTURE_CUBE_ARRAY_INDEX, extra_ARB_texture_cube_map_array_OES_texture_cube_map_array" ],
+
+ # GL_NUM_SHADING_LANGUAGE_VERSIONS
+ [ "NUM_SHADING_LANGUAGE_VERSIONS", "LOC_CUSTOM, TYPE_INT, 0, NO_EXTRA" ],
]},
# Enums in OpenGL Core profile and ES 3.0
diff --git a/src/mesa/main/getstring.c b/src/mesa/main/getstring.c
index 931f6a476c..1b4ec1193a 100644
--- a/src/mesa/main/getstring.c
+++ b/src/mesa/main/getstring.c
@@ -32,6 +32,7 @@
#include "extensions.h"
#include "mtypes.h"
#include "macros.h"
+#include "version.h"
/**
* Return the string for a glGetString(GL_SHADING_LANGUAGE_VERSION) query.
@@ -99,6 +100,68 @@ shading_language_version(struct gl_context *ctx)
}
+/**
+ * Get the i-th GLSL version string. If index=0, return the most recent
+ * supported version.
+ * \param ctx context to query
+ * \param index which version string to return, or -1 if none
+ * \param versionOut returns the vesrion string, NULL if index=-1
+ * \return total number of shading language versions.
+ */
+int
+_mesa_get_shading_language_version(const struct gl_context *ctx,
+ int index,
+ char **versionOut)
+{
+ int n = 0;
+
+#define GLSL_VERSION(S) \
+ if (n++ == index) \
+ *versionOut = S
+
+ /* GLSL core */
+ if (ctx->Const.GLSLVersion >= 460)
+ GLSL_VERSION("460");
+ if (ctx->Const.GLSLVersion >= 450)
+ GLSL_VERSION("450");
+ if (ctx->Const.GLSLVersion >= 440)
+ GLSL_VERSION("440");
+ if (ctx->Const.GLSLVersion >= 430)
+ GLSL_VERSION("430");
+ if (ctx->Const.GLSLVersion >= 420)
+ GLSL_VERSION("420");
+ if (ctx->Const.GLSLVersion >= 410)
+ GLSL_VERSION("410");
+ if (ctx->Const.GLSLVersion >= 400)
+ GLSL_VERSION("400");
+ if (ctx->Const.GLSLVersion >= 330)
+ GLSL_VERSION("330");
+ if (ctx->Const.GLSLVersion >= 150)
+ GLSL_VERSION("150");
+ if (ctx->Const.GLSLVersion >= 140)
+ GLSL_VERSION("140");
+ if (ctx->Const.GLSLVersion >= 130)
+ GLSL_VERSION("130");
+ if (ctx->Const.GLSLVersion >= 120)
+ GLSL_VERSION("120");
+ /* GLSL es */
+ if ((ctx->API == API_OPENGLES2 && ctx->Version >= 32) ||
+ ctx->Extensions.ARB_ES3_2_compatibility)
+ GLSL_VERSION("320 es");
+ if (_mesa_is_gles31(ctx) || ctx->Extensions.ARB_ES3_1_compatibility)
+ GLSL_VERSION("310 es");
+ if (_mesa_is_gles3(ctx) || ctx->Extensions.ARB_ES3_compatibility)
+ GLSL_VERSION("300 es");
+ if (ctx->API == API_OPENGLES2 || ctx->Extensions.ARB_ES2_compatibility)
+ GLSL_VERSION("100");
+
+ /* XXX the spec also says to return the empty string for GLSL 1.10 */
+#undef GLSL_VERSION
+
+ return n;
+}
+
+
/**
* Query string-valued state. The return value should _not_ be freed by
* the caller.
@@ -186,6 +249,17 @@ _mesa_GetStringi(GLenum name, GLuint index)
return (const GLubyte *) 0;
}
return _mesa_get_enabled_extension(ctx, index);
+ case GL_SHADING_LANGUAGE_VERSION:
+ {
+ char *version;
+ int num = _mesa_get_shading_language_version(ctx, index, &version);
+ if (index >= num) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetStringi(GL_SHADING_LANGUAGE_VERSION, index=%d", index);
+ return (const GLubyte *) 0;
+ }
+ return (const GLubyte *) version;
+ }
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glGetStringi");
return (const GLubyte *) 0;
diff --git a/src/mesa/main/version.h b/src/mesa/main/version.h
index 4cb5e5f0fa..adfec6f828 100644
--- a/src/mesa/main/version.h
+++ b/src/mesa/main/version.h
@@ -53,4 +53,9 @@ _mesa_get_driver_uuid(struct gl_context *ctx, GLint *uuid);
extern void
_mesa_get_device_uuid(struct gl_context *ctx, GLint *uuid);
+extern int
+_mesa_get_shading_language_version(const struct gl_context *ctx,
+ int index,
+ char **versionOut);
+
#endif /* VERSION_H */
--
2.14.1
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