X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fversion.c;h=7138cf39725a15ea803f52868c9b297bc0d5f6a7;hb=37266dfb7c747536d254b32eefa9222c60a37508;hp=85d5ab14b696359f6d0a3e38d6875c7c5e844a57;hpb=5a845cf898897cd3a4cdd752ab7e355e89b416fa;p=mesa.git

diff --git a/src/mesa/main/version.c b/src/mesa/main/version.c
index 85d5ab14b69..7138cf39725 100644
--- a/src/mesa/main/version.c
+++ b/src/mesa/main/version.c
@@ -24,6 +24,7 @@
 
 
 #include <stdio.h>
+#include "context.h"
 #include "imports.h"
 #include "mtypes.h"
 #include "version.h"
@@ -35,20 +36,13 @@
 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) {
+   if (len2 > len1)
       return false;
-   }
 
-   if (strcmp(string + (len1 - len2), ending) == 0) {
-      return true;
-   } else {
-      return false;
-   }
+   return strcmp(string + (len1 - len2), ending) == 0;
 }
 
 /**
@@ -58,39 +52,62 @@ check_for_ending(const char *string, const char *ending)
  * fwd_context is only valid if version > 0
  */
 static void
-get_gl_override(int *version, bool *fwd_context, bool *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 bool fc_suffix = false;
-   static bool compat_suffix = 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},
+   };
 
-   if (override_version < 0) {
-      override_version = 0;
+   STATIC_ASSERT(ARRAY_SIZE(override) == API_OPENGL_LAST + 1);
+
+   if (api == API_OPENGLES)
+      goto exit;
+
+   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;
 }
 
 /**
@@ -135,18 +152,26 @@ _mesa_override_gl_version_contextless(struct gl_constants *consts,
    int version;
    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 true;
    }
    return false;
@@ -157,26 +182,27 @@ _mesa_override_gl_version(struct gl_context *ctx)
 {
    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;
-   bool 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
@@ -301,7 +327,7 @@ compute_version(const struct gl_extensions *extensions,
                          extensions->ARB_gpu_shader5 &&
                          extensions->ARB_gpu_shader_fp64 &&
                          extensions->ARB_sample_shading &&
-                         0/*extensions->ARB_shader_subroutine*/ &&
+                         extensions->ARB_shader_subroutine &&
                          extensions->ARB_tessellation_shader &&
                          extensions->ARB_texture_buffer_object_rgb32 &&
                          extensions->ARB_texture_cube_map_array &&
@@ -312,7 +338,7 @@ compute_version(const struct gl_extensions *extensions,
                          consts->GLSLVersion >= 410 &&
                          extensions->ARB_ES2_compatibility &&
                          extensions->ARB_shader_precision &&
-                         0/*extensions->ARB_vertex_attrib_64bit*/ &&
+                         extensions->ARB_vertex_attrib_64bit &&
                          extensions->ARB_viewport_array);
    const bool ver_4_2 = (ver_4_1 &&
                          consts->GLSLVersion >= 420 &&
@@ -325,8 +351,55 @@ compute_version(const struct gl_extensions *extensions,
                          extensions->ARB_shading_language_packing &&
                          extensions->ARB_texture_compression_bptc &&
                          extensions->ARB_transform_feedback_instanced);
-
-   if (ver_4_2) {
+   const bool ver_4_3 = (ver_4_2 &&
+                         consts->GLSLVersion >= 430 &&
+                         extensions->ARB_ES3_compatibility &&
+                         extensions->ARB_arrays_of_arrays &&
+                         extensions->ARB_compute_shader &&
+                         extensions->ARB_copy_image &&
+                         extensions->ARB_explicit_uniform_location &&
+                         extensions->ARB_fragment_layer_viewport &&
+                         extensions->ARB_framebuffer_no_attachments &&
+                         extensions->ARB_internalformat_query2 &&
+                         extensions->ARB_robust_buffer_access_behavior &&
+                         extensions->ARB_shader_image_size &&
+                         extensions->ARB_shader_storage_buffer_object &&
+                         extensions->ARB_stencil_texturing &&
+                         extensions->ARB_texture_buffer_range &&
+                         extensions->ARB_texture_query_levels &&
+                         extensions->ARB_texture_view);
+   const bool ver_4_4 = (ver_4_3 &&
+                         consts->GLSLVersion >= 440 &&
+                         extensions->ARB_buffer_storage &&
+                         extensions->ARB_clear_texture &&
+                         extensions->ARB_enhanced_layouts &&
+                         extensions->ARB_query_buffer_object &&
+                         extensions->ARB_texture_mirror_clamp_to_edge &&
+                         extensions->ARB_texture_stencil8 &&
+                         extensions->ARB_vertex_type_10f_11f_11f_rev);
+   const bool ver_4_5 = (ver_4_4 &&
+                         consts->GLSLVersion >= 450 &&
+                         extensions->ARB_ES3_1_compatibility &&
+                         extensions->ARB_clip_control &&
+                         extensions->ARB_conditional_render_inverted &&
+                         extensions->ARB_cull_distance &&
+                         extensions->ARB_derivative_control &&
+                         extensions->ARB_shader_texture_image_samples &&
+                         extensions->NV_texture_barrier);
+
+   if (ver_4_5) {
+      major = 4;
+      minor = 5;
+   }
+   else if (ver_4_4) {
+      major = 4;
+      minor = 4;
+   }
+   else if (ver_4_3) {
+      major = 4;
+      minor = 3;
+   }
+   else if (ver_4_2) {
       major = 4;
       minor = 2;
    }
@@ -407,7 +480,8 @@ compute_version_es1(const struct gl_extensions *extensions)
 }
 
 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 bool ver_2_0 = (extensions->ARB_texture_cube_map &&
@@ -438,7 +512,43 @@ compute_version_es2(const struct gl_extensions *extensions)
                          extensions->EXT_texture_snorm &&
                          extensions->NV_primitive_restart &&
                          extensions->OES_depth_texture_cube_map);
-   if (ver_3_0) {
+   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);
+   const bool ver_3_2 = (ver_3_1 &&
+                         /*extensions->KHR_blend_equation_advanced*/ false &&
+                         extensions->KHR_texture_compression_astc_ldr &&
+                         extensions->OES_copy_image &&
+                         extensions->ARB_draw_buffers_blend &&
+                         extensions->ARB_draw_elements_base_vertex &&
+                         extensions->OES_geometry_shader &&
+                         /*extensions->OES_primitive_bounding_box*/ false &&
+                         extensions->OES_sample_variables &&
+                         extensions->ARB_tessellation_shader &&
+                         extensions->ARB_texture_border_clamp &&
+                         extensions->OES_texture_buffer &&
+                         extensions->ARB_texture_cube_map_array &&
+                         extensions->ARB_texture_stencil8);
+
+   if (ver_3_2) {
+      return 32;
+   } else if (ver_3_1) {
+      return 31;
+   } else if (ver_3_0) {
       return 30;
    } else if (ver_2_0) {
       return 20;
@@ -464,7 +574,7 @@ _mesa_get_version(const struct gl_extensions *extensions,
    case API_OPENGLES:
       return compute_version_es1(extensions);
    case API_OPENGLES2:
-      return compute_version_es2(extensions);
+      return compute_version_es2(extensions, consts);
    }
    return 0;
 }
@@ -481,6 +591,7 @@ _mesa_compute_version(struct gl_context *ctx)
       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.