* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
*/
#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".
+ * Scans 'string' to see if it ends with 'ending'.
+ */
+static GLboolean
+check_for_ending(const char *string, const char *ending)
+{
+ int len1, len2;
+
+ len1 = strlen(string);
+ len2 = strlen(ending);
+
+ if (len2 > len1) {
+ return GL_FALSE;
+ }
+
+ if (strcmp(string + (len1 - len2), ending) == 0) {
+ return GL_TRUE;
+ } else {
+ return GL_FALSE;
+ }
+}
+
+/**
+ * Returns the gl override data
+ *
+ * version > 0 indicates there is an override requested
+ * fwd_context is only valid if version > 0
*/
static void
-override_version(struct gl_context *ctx)
+get_gl_override(int *version, GLboolean *fwd_context)
{
const char *env_var = "MESA_GL_VERSION_OVERRIDE";
- const char *version;
- int n;
- int major, minor;
+ const char *version_str;
+ int major, minor, n;
+ static int override_version = -1;
+ static GLboolean fc_suffix = GL_FALSE;
- version = getenv(env_var);
- if (!version) {
- return;
- }
+ if (override_version < 0) {
+ override_version = 0;
- n = sscanf(version, "%u.%u", &major, &minor);
- if (n != 2) {
- fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version);
- return;
+ version_str = getenv(env_var);
+ if (version_str) {
+ fc_suffix = check_for_ending(version_str, "FC");
+
+ n = sscanf(version_str, "%u.%u", &major, &minor);
+ if (n != 2) {
+ fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version_str);
+ override_version = 0;
+ } else {
+ override_version = major * 10 + minor;
+ if (override_version < 30 && fc_suffix) {
+ fprintf(stderr, "error: invalid value for %s: %s\n", env_var, version_str);
+ }
+ }
+ }
}
- ctx->Version = major * 10 + minor;
+ *version = override_version;
+ *fwd_context = fc_suffix;
}
/**
ctx->VersionString = malloc(max);
if (ctx->VersionString) {
_mesa_snprintf(ctx->VersionString, max,
- "%s%u.%u%s Mesa " MESA_VERSION_STRING
+ "%s%u.%u%s Mesa " PACKAGE_VERSION
#ifdef MESA_GIT_SHA1
" (" MESA_GIT_SHA1 ")"
#endif
}
}
+/**
+ * Override the context's version and/or API type if the
+ * environment variable MESA_GL_VERSION_OVERRIDE is set.
+ *
+ * Example uses of MESA_GL_VERSION_OVERRIDE:
+ *
+ * 2.1: select a compatibility (non-Core) profile with GL version 2.1
+ * 3.0: select a compatibility (non-Core) profile with GL version 3.0
+ * 3.0FC: select a Core+Forward Compatible profile with GL version 3.0
+ * 3.1: select a Core profile with GL version 3.1
+ * 3.1FC: select a Core+Forward Compatible profile with GL version 3.1
+ */
+void
+_mesa_override_gl_version(struct gl_context *ctx)
+{
+ int version;
+ GLboolean fwd_context;
+
+ get_gl_override(&version, &fwd_context);
+
+ if (version > 0) {
+ ctx->Version = version;
+ if (version >= 30 && fwd_context) {
+ ctx->API = API_OPENGL_CORE;
+ ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
+ } else if (version >= 31) {
+ ctx->API = API_OPENGL_CORE;
+ } else {
+ ctx->API = API_OPENGL_COMPAT;
+ }
+ create_version_string(ctx, "");
+ }
+}
+
+/**
+ * Returns the gl override value
+ *
+ * version > 0 indicates there is an override requested
+ */
+int
+_mesa_get_gl_version_override(void)
+{
+ int version;
+ GLboolean fwd_context;
+
+ get_gl_override(&version, &fwd_context);
+
+ return version;
+}
+
/**
* Override the context's GLSL version if the environment variable
* MESA_GLSL_VERSION_OVERRIDE is set. Valid values for
ctx->Extensions.ARB_depth_texture &&
ctx->Extensions.ARB_shadow &&
ctx->Extensions.ARB_texture_env_crossbar &&
- ctx->Extensions.ARB_window_pos &&
ctx->Extensions.EXT_blend_color &&
ctx->Extensions.EXT_blend_func_separate &&
ctx->Extensions.EXT_blend_minmax &&
- ctx->Extensions.EXT_fog_coord &&
- ctx->Extensions.EXT_point_parameters &&
- ctx->Extensions.EXT_secondary_color);
+ ctx->Extensions.EXT_point_parameters);
const GLboolean ver_1_5 = (ver_1_4 &&
- ctx->Extensions.ARB_occlusion_query &&
- ctx->Extensions.EXT_shadow_funcs);
+ ctx->Extensions.ARB_occlusion_query);
const GLboolean ver_2_0 = (ver_1_5 &&
ctx->Extensions.ARB_point_sprite &&
- 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_stencil_two_side
|| ctx->Extensions.ATI_separate_stencil));
const GLboolean ver_2_1 = (ver_2_0 &&
- ctx->Const.GLSLVersion >= 120 &&
ctx->Extensions.EXT_pixel_buffer_object &&
ctx->Extensions.EXT_texture_sRGB);
const GLboolean ver_3_0 = (ver_2_1 &&
ctx->Const.GLSLVersion >= 130 &&
ctx->Const.MaxSamples >= 4 &&
- ctx->Extensions.ARB_color_buffer_float &&
+ (ctx->API == API_OPENGL_CORE ||
+ ctx->Extensions.ARB_color_buffer_float) &&
ctx->Extensions.ARB_depth_buffer_float &&
- ctx->Extensions.ARB_half_float_pixel &&
ctx->Extensions.ARB_half_float_vertex &&
ctx->Extensions.ARB_map_buffer_range &&
ctx->Extensions.ARB_shader_texture_lod &&
ctx->Extensions.NV_conditional_render);
const GLboolean ver_3_1 = (ver_3_0 &&
ctx->Const.GLSLVersion >= 140 &&
- 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);
+ ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits >= 16);
const GLboolean ver_3_2 = (ver_3_1 &&
ctx->Const.GLSLVersion >= 150 &&
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->Version = major * 10 + minor;
- override_version(ctx);
-
create_version_string(ctx, "");
}
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) {
+ /* FINISHME: This list isn't quite right. */
+ const GLboolean ver_3_0 = (ctx->Extensions.ARB_half_float_vertex &&
+ ctx->Extensions.ARB_internalformat_query &&
+ ctx->Extensions.ARB_map_buffer_range &&
+ ctx->Extensions.ARB_shader_texture_lod &&
+ ctx->Extensions.ARB_texture_float &&
+ ctx->Extensions.ARB_texture_rg &&
+ ctx->Extensions.ARB_texture_compression_rgtc &&
+ ctx->Extensions.EXT_draw_buffers2 &&
+ /* ctx->Extensions.ARB_framebuffer_object && */
+ ctx->Extensions.EXT_framebuffer_sRGB &&
+ ctx->Extensions.EXT_packed_float &&
+ ctx->Extensions.EXT_texture_array &&
+ ctx->Extensions.EXT_texture_shared_exponent &&
+ ctx->Extensions.EXT_transform_feedback &&
+ ctx->Extensions.NV_conditional_render &&
+ ctx->Extensions.ARB_draw_instanced &&
+ ctx->Extensions.ARB_uniform_buffer_object &&
+ ctx->Extensions.EXT_texture_snorm &&
+ ctx->Extensions.NV_primitive_restart &&
+ ctx->Extensions.OES_depth_texture_cube_map);
+ if (ver_3_0) {
+ ctx->Version = 30;
+ } else if (ver_2_0) {
ctx->Version = 20;
} else {
_mesa_problem(ctx, "Incomplete OpenGL ES 2.0 support.");
return;
switch (ctx->API) {
- case API_OPENGL:
+ case API_OPENGL_COMPAT:
+ /* Disable GLSL 1.40 and later for legacy contexts.
+ * This disallows creation of the GL 3.1 compatibility context. */
+ if (ctx->Const.GLSLVersion > 130) {
+ ctx->Const.GLSLVersion = 130;
+ }
+ /* fall through */
case API_OPENGL_CORE:
compute_version(ctx);
break;
projects / mesa.git / blobdiff