*/
-#include "context.h"
+#include "imports.h"
+#include "mtypes.h"
#include "version.h"
+#include "git_sha1.h"
+/**
+ * Override the context's GL version if the environment variable
+ * MESA_GL_VERSION_OVERRIDE is set. Valid values of MESA_GL_VERSION_OVERRIDE
+ * are point-separated version numbers, such as "3.0".
+ */
+static void
+override_version(struct gl_context *ctx, GLuint *major, GLuint *minor)
+{
+ const char *env_var = "MESA_GL_VERSION_OVERRIDE";
+ const char *version;
+ int n;
+ version = getenv(env_var);
+ if (!version) {
+ return;
+ }
+
+ n = sscanf(version, "%u.%u", major, minor);
+ if (n != 2) {
+ fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version);
+ return;
+ }
+}
+
+/**
+ * Override the context's GLSL version if the environment variable
+ * MESA_GLSL_VERSION_OVERRIDE is set. Valid values for
+ * MESA_GLSL_VERSION_OVERRIDE are integers, such as "130".
+ */
+void
+_mesa_override_glsl_version(struct gl_context *ctx)
+{
+ const char *env_var = "MESA_GLSL_VERSION_OVERRIDE";
+ const char *version;
+ int n;
+
+ version = getenv(env_var);
+ if (!version) {
+ return;
+ }
+
+ n = sscanf(version, "%u", &ctx->Const.GLSLVersion);
+ if (n != 1) {
+ fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version);
+ return;
+ }
+}
/**
* Examine enabled GL extensions to determine GL version.
* Return major and minor version numbers.
*/
static void
-compute_version(const GLcontext *ctx, GLuint *major, GLuint *minor)
+compute_version(struct gl_context *ctx)
{
- const GLboolean ver_1_3 = (ctx->Extensions.ARB_multisample &&
- ctx->Extensions.ARB_multitexture &&
- ctx->Extensions.ARB_texture_border_clamp &&
- ctx->Extensions.ARB_texture_compression &&
+ GLuint major, minor;
+ static const int max = 100;
+
+ const GLboolean ver_1_3 = (ctx->Extensions.ARB_texture_border_clamp &&
ctx->Extensions.ARB_texture_cube_map &&
- ctx->Extensions.EXT_texture_env_add &&
ctx->Extensions.ARB_texture_env_combine &&
ctx->Extensions.ARB_texture_env_dot3);
const GLboolean ver_1_4 = (ver_1_3 &&
ctx->Extensions.ARB_depth_texture &&
ctx->Extensions.ARB_shadow &&
ctx->Extensions.ARB_texture_env_crossbar &&
- ctx->Extensions.ARB_texture_mirrored_repeat &&
ctx->Extensions.ARB_window_pos &&
ctx->Extensions.EXT_blend_color &&
ctx->Extensions.EXT_blend_func_separate &&
ctx->Extensions.EXT_blend_minmax &&
- ctx->Extensions.EXT_blend_subtract &&
ctx->Extensions.EXT_fog_coord &&
- ctx->Extensions.EXT_multi_draw_arrays &&
ctx->Extensions.EXT_point_parameters &&
- ctx->Extensions.EXT_secondary_color &&
- ctx->Extensions.EXT_stencil_wrap &&
- ctx->Extensions.EXT_texture_lod_bias &&
- ctx->Extensions.SGIS_generate_mipmap);
+ ctx->Extensions.EXT_secondary_color);
const GLboolean ver_1_5 = (ver_1_4 &&
ctx->Extensions.ARB_occlusion_query &&
- ctx->Extensions.ARB_vertex_buffer_object &&
ctx->Extensions.EXT_shadow_funcs);
const GLboolean ver_2_0 = (ver_1_5 &&
- ctx->Extensions.ARB_draw_buffers &&
ctx->Extensions.ARB_point_sprite &&
ctx->Extensions.ARB_shader_objects &&
ctx->Extensions.ARB_vertex_shader &&
(ctx->Extensions.EXT_stencil_two_side
|| ctx->Extensions.ATI_separate_stencil));
const GLboolean ver_2_1 = (ver_2_0 &&
- ctx->Extensions.ARB_shading_language_120 &&
+ ctx->Const.GLSLVersion >= 120 &&
ctx->Extensions.EXT_pixel_buffer_object &&
ctx->Extensions.EXT_texture_sRGB);
- if (ver_2_1) {
- *major = 2;
- *minor = 1;
+ const GLboolean ver_3_0 = (ver_2_1 &&
+ ctx->Extensions.ARB_color_buffer_float &&
+ ctx->Extensions.ARB_depth_buffer_float &&
+ ctx->Extensions.ARB_half_float_pixel &&
+ ctx->Extensions.ARB_map_buffer_range &&
+ ctx->Extensions.ARB_texture_float &&
+ ctx->Extensions.ARB_texture_rg &&
+ ctx->Extensions.ARB_texture_compression_rgtc &&
+ ctx->Extensions.APPLE_vertex_array_object &&
+ ctx->Extensions.EXT_draw_buffers2 &&
+ ctx->Extensions.EXT_framebuffer_blit &&
+ ctx->Extensions.EXT_framebuffer_multisample &&
+ ctx->Extensions.EXT_framebuffer_object &&
+ ctx->Extensions.EXT_framebuffer_sRGB &&
+ ctx->Extensions.EXT_packed_depth_stencil &&
+ ctx->Extensions.EXT_packed_float &&
+ ctx->Extensions.EXT_texture_array &&
+ ctx->Extensions.EXT_texture_integer &&
+ ctx->Extensions.EXT_texture_shared_exponent &&
+ ctx->Extensions.EXT_transform_feedback &&
+ ctx->Extensions.NV_conditional_render);
+ const GLboolean ver_3_1 = (ver_3_0 &&
+ ctx->Extensions.ARB_copy_buffer &&
+ ctx->Extensions.ARB_draw_instanced &&
+ ctx->Extensions.ARB_texture_buffer_object &&
+ ctx->Extensions.ARB_uniform_buffer_object &&
+ ctx->Extensions.EXT_texture_snorm &&
+ ctx->Extensions.NV_primitive_restart &&
+ ctx->Extensions.NV_texture_rectangle &&
+ ctx->Const.MaxVertexTextureImageUnits >= 16);
+ const GLboolean ver_3_2 = (ver_3_1 &&
+ ctx->Extensions.ARB_depth_clamp &&
+ ctx->Extensions.ARB_draw_elements_base_vertex &&
+ ctx->Extensions.ARB_fragment_coord_conventions &&
+ ctx->Extensions.ARB_geometry_shader4 &&
+ ctx->Extensions.EXT_provoking_vertex &&
+ ctx->Extensions.ARB_seamless_cube_map &&
+ ctx->Extensions.ARB_sync &&
+ ctx->Extensions.ARB_texture_multisample &&
+ ctx->Extensions.EXT_vertex_array_bgra);
+ const GLboolean ver_3_3 = (ver_3_2 &&
+ ctx->Extensions.ARB_blend_func_extended &&
+ ctx->Extensions.ARB_explicit_attrib_location &&
+ ctx->Extensions.ARB_instanced_arrays &&
+ ctx->Extensions.ARB_occlusion_query2 &&
+ ctx->Extensions.ARB_sampler_objects &&
+ ctx->Extensions.ARB_texture_rgb10_a2ui &&
+ ctx->Extensions.ARB_timer_query &&
+ ctx->Extensions.ARB_vertex_type_2_10_10_10_rev &&
+ ctx->Extensions.EXT_texture_swizzle);
+
+ if (ver_3_3) {
+ major = 3;
+ minor = 3;
+ }
+ else if (ver_3_2) {
+ major = 3;
+ minor = 2;
+ }
+ else if (ver_3_1) {
+ major = 3;
+ minor = 1;
+ }
+ else if (ver_3_0) {
+ major = 3;
+ minor = 0;
+ }
+ else if (ver_2_1) {
+ major = 2;
+ minor = 1;
}
else if (ver_2_0) {
- *major = 2;
- *minor = 0;
+ major = 2;
+ minor = 0;
}
else if (ver_1_5) {
- *major = 1;
- *minor = 5;
+ major = 1;
+ minor = 5;
}
else if (ver_1_4) {
- *major = 1;
- *minor = 4;
+ major = 1;
+ minor = 4;
}
else if (ver_1_3) {
- *major = 1;
- *minor = 3;
+ major = 1;
+ minor = 3;
}
else {
- *major = 1;
- *minor = 2;
+ major = 1;
+ minor = 2;
+ }
+
+ ctx->VersionMajor = major;
+ ctx->VersionMinor = minor;
+
+ override_version(ctx, &ctx->VersionMajor, &ctx->VersionMinor);
+
+ ctx->VersionString = (char *) malloc(max);
+ if (ctx->VersionString) {
+ _mesa_snprintf(ctx->VersionString, max,
+ "%u.%u Mesa " MESA_VERSION_STRING
+#ifdef MESA_GIT_SHA1
+ " (" MESA_GIT_SHA1 ")"
+#endif
+ ,
+ ctx->VersionMajor, ctx->VersionMinor);
}
}
+static void
+compute_version_es1(struct gl_context *ctx)
+{
+ static const int max = 100;
+
+ /* OpenGL ES 1.0 is derived from OpenGL 1.3 */
+ const GLboolean ver_1_0 = (ctx->Extensions.ARB_texture_env_combine &&
+ ctx->Extensions.ARB_texture_env_dot3);
+ /* OpenGL ES 1.1 is derived from OpenGL 1.5 */
+ const GLboolean ver_1_1 = (ver_1_0 &&
+ ctx->Extensions.EXT_point_parameters);
+
+ if (ver_1_1) {
+ ctx->VersionMajor = 1;
+ ctx->VersionMinor = 1;
+ } else if (ver_1_0) {
+ ctx->VersionMajor = 1;
+ ctx->VersionMinor = 0;
+ } else {
+ _mesa_problem(ctx, "Incomplete OpenGL ES 1.0 support.");
+ }
+
+ ctx->VersionString = (char *) malloc(max);
+ if (ctx->VersionString) {
+ _mesa_snprintf(ctx->VersionString, max,
+ "OpenGL ES-CM 1.%d Mesa " MESA_VERSION_STRING,
+ ctx->VersionMinor);
+ }
+}
+
+static void
+compute_version_es2(struct gl_context *ctx)
+{
+ static const int max = 100;
+
+ /* OpenGL ES 2.0 is derived from OpenGL 2.0 */
+ const GLboolean ver_2_0 = (ctx->Extensions.ARB_texture_cube_map &&
+ ctx->Extensions.EXT_blend_color &&
+ ctx->Extensions.EXT_blend_func_separate &&
+ ctx->Extensions.EXT_blend_minmax &&
+ ctx->Extensions.ARB_shader_objects &&
+ ctx->Extensions.ARB_vertex_shader &&
+ ctx->Extensions.ARB_fragment_shader &&
+ ctx->Extensions.ARB_texture_non_power_of_two &&
+ ctx->Extensions.EXT_blend_equation_separate);
+ if (ver_2_0) {
+ ctx->VersionMajor = 2;
+ ctx->VersionMinor = 0;
+ } else {
+ _mesa_problem(ctx, "Incomplete OpenGL ES 2.0 support.");
+ }
+
+ ctx->VersionString = (char *) malloc(max);
+ if (ctx->VersionString) {
+ _mesa_snprintf(ctx->VersionString, max,
+ "OpenGL ES 2.0 Mesa " MESA_VERSION_STRING);
+ }
+}
/**
* Set the context's VersionMajor, VersionMinor, VersionString fields.
- * This should only be called once as part of context initialization.
+ * This should only be called once as part of context initialization
+ * or to perform version check for GLX_ARB_create_context_profile.
*/
void
-_mesa_compute_version(GLcontext *ctx)
+_mesa_compute_version(struct gl_context *ctx)
{
- static const int max = 100;
+ if (ctx->VersionMajor)
+ return;
- compute_version(ctx, &ctx->VersionMajor, &ctx->VersionMinor);
-
- ctx->VersionString = (char *) malloc(max);
- if (ctx->VersionString) {
- _mesa_snprintf(ctx->VersionString, max, "%u.%u Mesa " MESA_VERSION_STRING,
- ctx->VersionMajor, ctx->VersionMinor);
+ switch (ctx->API) {
+ case API_OPENGL:
+ compute_version(ctx);
+ break;
+ case API_OPENGLES:
+ compute_version_es1(ctx);
+ break;
+ case API_OPENGLES2:
+ compute_version_es2(ctx);
+ break;
}
+
}
projects / mesa.git / blobdiff