#include <stdio.h>
+#include "context.h"
#include "imports.h"
#include "mtypes.h"
#include "version.h"
/**
* Scans 'string' to see if it ends with 'ending'.
*/
-static GLboolean
+static bool
check_for_ending(const char *string, const char *ending)
{
- int len1, len2;
+ const size_t len1 = strlen(string);
+ const size_t len2 = strlen(ending);
- len1 = strlen(string);
- len2 = strlen(ending);
+ if (len2 > len1)
+ return false;
- if (len2 > len1) {
- return GL_FALSE;
- }
-
- if (strcmp(string + (len1 - len2), ending) == 0) {
- return GL_TRUE;
- } else {
- return GL_FALSE;
- }
+ return strcmp(string + (len1 - len2), ending) == 0;
}
/**
* fwd_context is only valid if version > 0
*/
static void
-get_gl_override(int *version, GLboolean *fwd_context,
- GLboolean *compat_context)
+get_gl_override(gl_api api, int *version, bool *fwd_context,
+ bool *compat_context)
{
- const char *env_var = "MESA_GL_VERSION_OVERRIDE";
+ const char *env_var = (api == API_OPENGL_CORE || api == API_OPENGL_COMPAT)
+ ? "MESA_GL_VERSION_OVERRIDE" : "MESA_GLES_VERSION_OVERRIDE";
const char *version_str;
int major, minor, n;
- static int override_version = -1;
- static GLboolean fc_suffix = GL_FALSE;
- static GLboolean compat_suffix = GL_FALSE;
+ static struct override_info {
+ int version;
+ bool fc_suffix;
+ bool compat_suffix;
+ } override[] = {
+ { -1, false, false},
+ { -1, false, false},
+ { -1, false, false},
+ { -1, false, false},
+ };
+
+ STATIC_ASSERT(ARRAY_SIZE(override) == API_OPENGL_LAST + 1);
+
+ if (api == API_OPENGLES)
+ goto exit;
- if (override_version < 0) {
- override_version = 0;
+ if (override[api].version < 0) {
+ override[api].version = 0;
version_str = getenv(env_var);
if (version_str) {
- fc_suffix = check_for_ending(version_str, "FC");
- compat_suffix = check_for_ending(version_str, "COMPAT");
+ override[api].fc_suffix = check_for_ending(version_str, "FC");
+ override[api].compat_suffix = check_for_ending(version_str, "COMPAT");
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;
+ fprintf(stderr, "error: invalid value for %s: %s\n",
+ env_var, version_str);
+ override[api].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);
+ override[api].version = major * 10 + minor;
+
+ /* There is no such thing as compatibility or forward-compatible for
+ * OpenGL ES 2.0 or 3.x APIs.
+ */
+ if ((override[api].version < 30 && override[api].fc_suffix) ||
+ (api == API_OPENGLES2 && (override[api].fc_suffix ||
+ override[api].compat_suffix))) {
+ fprintf(stderr, "error: invalid value for %s: %s\n",
+ env_var, version_str);
}
}
}
}
- *version = override_version;
- *fwd_context = fc_suffix;
- *compat_context = compat_suffix;
+exit:
+ *version = override[api].version;
+ *fwd_context = override[api].fc_suffix;
+ *compat_context = override[api].compat_suffix;
}
/**
gl_api *apiOut, GLuint *versionOut)
{
int version;
- GLboolean fwd_context, compat_context;
+ bool fwd_context, compat_context;
- get_gl_override(&version, &fwd_context, &compat_context);
+ get_gl_override(*apiOut, &version, &fwd_context, &compat_context);
if (version > 0) {
*versionOut = version;
- if (version >= 30 && fwd_context) {
- *apiOut = API_OPENGL_CORE;
- consts->ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
- } else if (version >= 31 && !compat_context) {
- *apiOut = API_OPENGL_CORE;
- } else {
- *apiOut = API_OPENGL_COMPAT;
+
+ /* If the API is a desktop API, adjust the context flags. We may also
+ * need to modify the API depending on the version. For example, Mesa
+ * does not support a GL 3.3 compatibility profile.
+ */
+ if (*apiOut == API_OPENGL_CORE || *apiOut == API_OPENGL_COMPAT) {
+ if (version >= 30 && fwd_context) {
+ *apiOut = API_OPENGL_CORE;
+ consts->ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
+ } else if (version >= 31 && !compat_context) {
+ *apiOut = API_OPENGL_CORE;
+ } else {
+ *apiOut = API_OPENGL_COMPAT;
+ }
}
- return GL_TRUE;
+
+ return true;
}
- return GL_FALSE;
+ return false;
}
void
{
if (_mesa_override_gl_version_contextless(&ctx->Const, &ctx->API,
&ctx->Version)) {
- create_version_string(ctx, "");
+ /* We need to include API in version string for OpenGL ES, otherwise
+ * application can not detect GLES via glGetString(GL_VERSION) query.
+ *
+ * From OpenGL ES 3.2 spec, Page 436:
+ *
+ * "The VERSION string is laid out as follows:
+ *
+ * OpenGL ES N.M vendor-specific information"
+ *
+ * From OpenGL 4.5 spec, Page 538:
+ *
+ * "The VERSION and SHADING_LANGUAGE_VERSION strings are laid out as
+ * follows:
+ *
+ * <version number><space><vendor-specific information>"
+ */
+ create_version_string(ctx, _mesa_is_gles(ctx) ? "OpenGL ES " : "");
+ ctx->Extensions.Version = ctx->Version;
}
}
-/**
- * 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, compat_context;
-
- get_gl_override(&version, &fwd_context, &compat_context);
-
- return version;
-}
-
/**
* Override the context's GLSL version if the environment variable
* MESA_GLSL_VERSION_OVERRIDE is set. Valid values for
{
GLuint major, minor, version;
- const GLboolean ver_1_3 = (extensions->ARB_texture_border_clamp &&
- extensions->ARB_texture_cube_map &&
- extensions->ARB_texture_env_combine &&
- extensions->ARB_texture_env_dot3);
- const GLboolean ver_1_4 = (ver_1_3 &&
- extensions->ARB_depth_texture &&
- extensions->ARB_shadow &&
- extensions->ARB_texture_env_crossbar &&
- extensions->EXT_blend_color &&
- extensions->EXT_blend_func_separate &&
- extensions->EXT_blend_minmax &&
- extensions->EXT_point_parameters);
- const GLboolean ver_1_5 = (ver_1_4 &&
- extensions->ARB_occlusion_query);
- const GLboolean ver_2_0 = (ver_1_5 &&
- extensions->ARB_point_sprite &&
- extensions->ARB_vertex_shader &&
- extensions->ARB_fragment_shader &&
- extensions->ARB_texture_non_power_of_two &&
- extensions->EXT_blend_equation_separate &&
-
- /* Technically, 2.0 requires the functionality
- * of the EXT version. Enable 2.0 if either
- * extension is available, and assume that a
- * driver that only exposes the ATI extension
- * will fallback to software when necessary.
- */
- (extensions->EXT_stencil_two_side
- || extensions->ATI_separate_stencil));
- const GLboolean ver_2_1 = (ver_2_0 &&
- extensions->EXT_pixel_buffer_object &&
- extensions->EXT_texture_sRGB);
- const GLboolean ver_3_0 = (ver_2_1 &&
- consts->GLSLVersion >= 130 &&
- (consts->MaxSamples >= 4 || consts->FakeSWMSAA) &&
- (api == API_OPENGL_CORE ||
- extensions->ARB_color_buffer_float) &&
- extensions->ARB_depth_buffer_float &&
- extensions->ARB_half_float_vertex &&
- extensions->ARB_map_buffer_range &&
- extensions->ARB_shader_texture_lod &&
- extensions->ARB_texture_float &&
- extensions->ARB_texture_rg &&
- extensions->ARB_texture_compression_rgtc &&
- extensions->EXT_draw_buffers2 &&
- extensions->ARB_framebuffer_object &&
- extensions->EXT_framebuffer_sRGB &&
- extensions->EXT_packed_float &&
- extensions->EXT_texture_array &&
- extensions->EXT_texture_shared_exponent &&
- extensions->EXT_transform_feedback &&
- extensions->NV_conditional_render);
- const GLboolean ver_3_1 = (ver_3_0 &&
- consts->GLSLVersion >= 140 &&
- extensions->ARB_draw_instanced &&
- extensions->ARB_texture_buffer_object &&
- extensions->ARB_uniform_buffer_object &&
- extensions->EXT_texture_snorm &&
- extensions->NV_primitive_restart &&
- extensions->NV_texture_rectangle &&
- consts->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits >= 16);
- const GLboolean ver_3_2 = (ver_3_1 &&
- consts->GLSLVersion >= 150 &&
- extensions->ARB_depth_clamp &&
- extensions->ARB_draw_elements_base_vertex &&
- extensions->ARB_fragment_coord_conventions &&
- extensions->EXT_provoking_vertex &&
- extensions->ARB_seamless_cube_map &&
- extensions->ARB_sync &&
- extensions->ARB_texture_multisample &&
- extensions->EXT_vertex_array_bgra);
- const GLboolean ver_3_3 = (ver_3_2 &&
- consts->GLSLVersion >= 330 &&
- extensions->ARB_blend_func_extended &&
- extensions->ARB_explicit_attrib_location &&
- extensions->ARB_instanced_arrays &&
- extensions->ARB_occlusion_query2 &&
- extensions->ARB_shader_bit_encoding &&
- extensions->ARB_texture_rgb10_a2ui &&
- extensions->ARB_timer_query &&
- extensions->ARB_vertex_type_2_10_10_10_rev &&
- extensions->EXT_texture_swizzle);
- /* ARB_sampler_objects is always enabled in mesa */
-
- const GLboolean ver_4_0 = (ver_3_3 &&
- consts->GLSLVersion >= 400 &&
- extensions->ARB_draw_buffers_blend &&
- extensions->ARB_draw_indirect &&
- extensions->ARB_gpu_shader5 &&
- extensions->ARB_gpu_shader_fp64 &&
- extensions->ARB_sample_shading &&
- 0/*extensions->ARB_shader_subroutine*/ &&
- extensions->ARB_tessellation_shader &&
- extensions->ARB_texture_buffer_object_rgb32 &&
- extensions->ARB_texture_cube_map_array &&
- extensions->ARB_texture_query_lod &&
- extensions->ARB_transform_feedback2 &&
- extensions->ARB_transform_feedback3);
- const GLboolean ver_4_1 = (ver_4_0 &&
- consts->GLSLVersion >= 410 &&
- extensions->ARB_ES2_compatibility &&
- extensions->ARB_shader_precision &&
- 0/*extensions->ARB_vertex_attrib_64bit*/ &&
- extensions->ARB_viewport_array);
- const GLboolean ver_4_2 = (ver_4_1 &&
- consts->GLSLVersion >= 420 &&
- extensions->ARB_base_instance &&
- extensions->ARB_conservative_depth &&
- extensions->ARB_internalformat_query &&
- extensions->ARB_shader_atomic_counters &&
- extensions->ARB_shader_image_load_store &&
- extensions->ARB_shading_language_420pack &&
- extensions->ARB_shading_language_packing &&
- extensions->ARB_texture_compression_bptc &&
- extensions->ARB_transform_feedback_instanced);
+ const bool ver_1_3 = (extensions->ARB_texture_border_clamp &&
+ extensions->ARB_texture_cube_map &&
+ extensions->ARB_texture_env_combine &&
+ extensions->ARB_texture_env_dot3);
+ const bool ver_1_4 = (ver_1_3 &&
+ extensions->ARB_depth_texture &&
+ extensions->ARB_shadow &&
+ extensions->ARB_texture_env_crossbar &&
+ extensions->EXT_blend_color &&
+ extensions->EXT_blend_func_separate &&
+ extensions->EXT_blend_minmax &&
+ extensions->EXT_point_parameters);
+ const bool ver_1_5 = (ver_1_4 &&
+ extensions->ARB_occlusion_query);
+ const bool ver_2_0 = (ver_1_5 &&
+ extensions->ARB_point_sprite &&
+ extensions->ARB_vertex_shader &&
+ extensions->ARB_fragment_shader &&
+ extensions->ARB_texture_non_power_of_two &&
+ extensions->EXT_blend_equation_separate &&
+
+ /* Technically, 2.0 requires the functionality of the
+ * EXT version. Enable 2.0 if either extension is
+ * available, and assume that a driver that only
+ * exposes the ATI extension will fallback to
+ * software when necessary.
+ */
+ (extensions->EXT_stencil_two_side
+ || extensions->ATI_separate_stencil));
+ const bool ver_2_1 = (ver_2_0 &&
+ extensions->EXT_pixel_buffer_object &&
+ extensions->EXT_texture_sRGB);
+ const bool ver_3_0 = (ver_2_1 &&
+ consts->GLSLVersion >= 130 &&
+ (consts->MaxSamples >= 4 || consts->FakeSWMSAA) &&
+ (api == API_OPENGL_CORE ||
+ extensions->ARB_color_buffer_float) &&
+ extensions->ARB_depth_buffer_float &&
+ extensions->ARB_half_float_vertex &&
+ extensions->ARB_map_buffer_range &&
+ extensions->ARB_shader_texture_lod &&
+ extensions->ARB_texture_float &&
+ extensions->ARB_texture_rg &&
+ extensions->ARB_texture_compression_rgtc &&
+ extensions->EXT_draw_buffers2 &&
+ extensions->ARB_framebuffer_object &&
+ extensions->EXT_framebuffer_sRGB &&
+ extensions->EXT_packed_float &&
+ extensions->EXT_texture_array &&
+ extensions->EXT_texture_shared_exponent &&
+ extensions->EXT_transform_feedback &&
+ extensions->NV_conditional_render);
+ const bool ver_3_1 = (ver_3_0 &&
+ consts->GLSLVersion >= 140 &&
+ extensions->ARB_draw_instanced &&
+ extensions->ARB_texture_buffer_object &&
+ extensions->ARB_uniform_buffer_object &&
+ extensions->EXT_texture_snorm &&
+ extensions->NV_primitive_restart &&
+ extensions->NV_texture_rectangle &&
+ consts->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits >= 16);
+ const bool ver_3_2 = (ver_3_1 &&
+ consts->GLSLVersion >= 150 &&
+ extensions->ARB_depth_clamp &&
+ extensions->ARB_draw_elements_base_vertex &&
+ extensions->ARB_fragment_coord_conventions &&
+ extensions->EXT_provoking_vertex &&
+ extensions->ARB_seamless_cube_map &&
+ extensions->ARB_sync &&
+ extensions->ARB_texture_multisample &&
+ extensions->EXT_vertex_array_bgra);
+ const bool ver_3_3 = (ver_3_2 &&
+ consts->GLSLVersion >= 330 &&
+ extensions->ARB_blend_func_extended &&
+ extensions->ARB_explicit_attrib_location &&
+ extensions->ARB_instanced_arrays &&
+ extensions->ARB_occlusion_query2 &&
+ extensions->ARB_shader_bit_encoding &&
+ extensions->ARB_texture_rgb10_a2ui &&
+ extensions->ARB_timer_query &&
+ extensions->ARB_vertex_type_2_10_10_10_rev &&
+ extensions->EXT_texture_swizzle);
+ /* ARB_sampler_objects is always enabled in mesa */
+
+ const bool ver_4_0 = (ver_3_3 &&
+ consts->GLSLVersion >= 400 &&
+ extensions->ARB_draw_buffers_blend &&
+ extensions->ARB_draw_indirect &&
+ extensions->ARB_gpu_shader5 &&
+ extensions->ARB_gpu_shader_fp64 &&
+ extensions->ARB_sample_shading &&
+ extensions->ARB_shader_subroutine &&
+ extensions->ARB_tessellation_shader &&
+ extensions->ARB_texture_buffer_object_rgb32 &&
+ extensions->ARB_texture_cube_map_array &&
+ extensions->ARB_texture_query_lod &&
+ extensions->ARB_transform_feedback2 &&
+ extensions->ARB_transform_feedback3);
+ const bool ver_4_1 = (ver_4_0 &&
+ consts->GLSLVersion >= 410 &&
+ extensions->ARB_ES2_compatibility &&
+ extensions->ARB_shader_precision &&
+ extensions->ARB_vertex_attrib_64bit &&
+ extensions->ARB_viewport_array);
+ const bool ver_4_2 = (ver_4_1 &&
+ consts->GLSLVersion >= 420 &&
+ extensions->ARB_base_instance &&
+ extensions->ARB_conservative_depth &&
+ extensions->ARB_internalformat_query &&
+ extensions->ARB_shader_atomic_counters &&
+ extensions->ARB_shader_image_load_store &&
+ extensions->ARB_shading_language_420pack &&
+ extensions->ARB_shading_language_packing &&
+ extensions->ARB_texture_compression_bptc &&
+ extensions->ARB_transform_feedback_instanced);
if (ver_4_2) {
major = 4;
compute_version_es1(const struct gl_extensions *extensions)
{
/* OpenGL ES 1.0 is derived from OpenGL 1.3 */
- const GLboolean ver_1_0 = (extensions->ARB_texture_env_combine &&
- extensions->ARB_texture_env_dot3);
+ const bool ver_1_0 = (extensions->ARB_texture_env_combine &&
+ extensions->ARB_texture_env_dot3);
/* OpenGL ES 1.1 is derived from OpenGL 1.5 */
- const GLboolean ver_1_1 = (ver_1_0 &&
- extensions->EXT_point_parameters);
+ const bool ver_1_1 = (ver_1_0 &&
+ extensions->EXT_point_parameters);
if (ver_1_1) {
return 11;
}
static GLuint
-compute_version_es2(const struct gl_extensions *extensions)
+compute_version_es2(const struct gl_extensions *extensions,
+ const struct gl_constants *consts)
{
/* OpenGL ES 2.0 is derived from OpenGL 2.0 */
- const GLboolean ver_2_0 = (extensions->ARB_texture_cube_map &&
- extensions->EXT_blend_color &&
- extensions->EXT_blend_func_separate &&
- extensions->EXT_blend_minmax &&
- extensions->ARB_vertex_shader &&
- extensions->ARB_fragment_shader &&
- extensions->ARB_texture_non_power_of_two &&
- extensions->EXT_blend_equation_separate);
+ const bool ver_2_0 = (extensions->ARB_texture_cube_map &&
+ extensions->EXT_blend_color &&
+ extensions->EXT_blend_func_separate &&
+ extensions->EXT_blend_minmax &&
+ extensions->ARB_vertex_shader &&
+ extensions->ARB_fragment_shader &&
+ extensions->ARB_texture_non_power_of_two &&
+ extensions->EXT_blend_equation_separate);
/* FINISHME: This list isn't quite right. */
- const GLboolean ver_3_0 = (extensions->ARB_half_float_vertex &&
- extensions->ARB_internalformat_query &&
- extensions->ARB_map_buffer_range &&
- extensions->ARB_shader_texture_lod &&
- extensions->ARB_texture_float &&
- extensions->ARB_texture_rg &&
- extensions->ARB_depth_buffer_float &&
- extensions->EXT_draw_buffers2 &&
- /* extensions->ARB_framebuffer_object && */
- extensions->EXT_framebuffer_sRGB &&
- extensions->EXT_packed_float &&
- extensions->EXT_texture_array &&
- extensions->EXT_texture_shared_exponent &&
- extensions->EXT_transform_feedback &&
- extensions->ARB_draw_instanced &&
- extensions->ARB_uniform_buffer_object &&
- extensions->EXT_texture_snorm &&
- extensions->NV_primitive_restart &&
- extensions->OES_depth_texture_cube_map);
- if (ver_3_0) {
+ const bool ver_3_0 = (extensions->ARB_half_float_vertex &&
+ extensions->ARB_internalformat_query &&
+ extensions->ARB_map_buffer_range &&
+ extensions->ARB_shader_texture_lod &&
+ extensions->ARB_texture_float &&
+ extensions->ARB_texture_rg &&
+ extensions->ARB_depth_buffer_float &&
+ extensions->EXT_draw_buffers2 &&
+ /* extensions->ARB_framebuffer_object && */
+ extensions->EXT_framebuffer_sRGB &&
+ extensions->EXT_packed_float &&
+ extensions->EXT_texture_array &&
+ extensions->EXT_texture_shared_exponent &&
+ extensions->EXT_transform_feedback &&
+ extensions->ARB_draw_instanced &&
+ extensions->ARB_uniform_buffer_object &&
+ extensions->EXT_texture_snorm &&
+ extensions->NV_primitive_restart &&
+ extensions->OES_depth_texture_cube_map);
+ const bool es31_compute_shader =
+ consts->MaxComputeWorkGroupInvocations >= 128;
+ const bool ver_3_1 = (ver_3_0 &&
+ extensions->ARB_arrays_of_arrays &&
+ es31_compute_shader &&
+ extensions->ARB_draw_indirect &&
+ extensions->ARB_explicit_uniform_location &&
+ extensions->ARB_framebuffer_no_attachments &&
+ extensions->ARB_shader_atomic_counters &&
+ extensions->ARB_shader_image_load_store &&
+ extensions->ARB_shader_image_size &&
+ extensions->ARB_shader_storage_buffer_object &&
+ extensions->ARB_shading_language_packing &&
+ extensions->ARB_stencil_texturing &&
+ extensions->ARB_texture_multisample &&
+ extensions->ARB_gpu_shader5 &&
+ extensions->EXT_shader_integer_mix);
+
+ if (ver_3_1) {
+ return 31;
+ } else if (ver_3_0) {
return 30;
} else if (ver_2_0) {
return 20;
case API_OPENGLES:
return compute_version_es1(extensions);
case API_OPENGLES2:
- return compute_version_es2(extensions);
+ return compute_version_es2(extensions, consts);
}
return 0;
}
return;
ctx->Version = _mesa_get_version(&ctx->Extensions, &ctx->Const, ctx->API);
+ ctx->Extensions.Version = ctx->Version;
/* Make sure that the GLSL version lines up with the GL version. In some
* cases it can be too high, e.g. if an extension is missing.
projects / mesa.git / blobdiff