Add a hack to use #version 110 but keep using 130 features, for the benefit of OS X.

diff --git a/init.cpp b/init.cpp
index ed8172dcaefa25059c64566cc4ebbe59a6657d72..7781ba24ccd7e8fb76c1e5f305ecff8ba75c35bc 100644 (file)
--- a/init.cpp
+++ b/init.cpp
@@ -433,7 +433,14 @@ bool init_movit(const string& data_directory, MovitDebugLevel debug_level)
                if (get_glsl_version() < 1.30f) {
                        fprintf(stderr, "Movit system requirements: Needs at least GLSL version 1.30 (has version %.1f)\n",
                                get_glsl_version());
                if (get_glsl_version() < 1.30f) {
                        fprintf(stderr, "Movit system requirements: Needs at least GLSL version 1.30 (has version %.1f)\n",
                                get_glsl_version());

-                       return false;
+                       if (get_glsl_version() >= 1.10f) {
+                               fprintf(stderr, "Attempting to continue nevertheless; expect shader compilation issues.\n");
+                               fprintf(stderr, "Try switching to a core OpenGL context, as especially OS X drivers\n");
+                               fprintf(stderr, "support newer GLSL versions there.\n");
+                               movit_shader_model = MOVIT_GLSL_130_AS_110;
+                       } else {
+                               return false;
+                       }

                }
                if (get_glsl_version() < 1.50f) {
                        movit_shader_model = MOVIT_GLSL_130;
                }
                if (get_glsl_version() < 1.50f) {
                        movit_shader_model = MOVIT_GLSL_130;

diff --git a/init.h b/init.h
index 7e1e13028b35bd6a0069c45828df88f7133b535f..89e3ef70c6b538494b218339995e891b0aa712ce 100644 (file)
--- a/init.h
+++ b/init.h
@@ -73,7 +73,7 @@ extern bool movit_timer_queries_supported;
 // What shader model we are compiling for. This only affects the choice
 // of a few files (like header.frag); most of the shaders are the same.
 enum MovitShaderModel {
 // What shader model we are compiling for. This only affects the choice
 // of a few files (like header.frag); most of the shaders are the same.
 enum MovitShaderModel {

-       MOVIT_GLSL_110,  // No longer in use, but kept until next ABI break in order not to change the enums.
+       MOVIT_GLSL_130_AS_110,  // Use 1.30 features freely, but use #version 110.

        MOVIT_GLSL_130,
        MOVIT_ESSL_300,
        MOVIT_GLSL_150,
        MOVIT_GLSL_130,
        MOVIT_ESSL_300,
        MOVIT_GLSL_150,

diff --git a/util.cpp b/util.cpp
index d50039993bafc08853fe1278803f053212521f71..675b25b4940c3d9a9048d3d4488220340b31817b 100644 (file)
--- a/util.cpp
+++ b/util.cpp
@@ -127,7 +127,12 @@ string read_file(const string &filename)
 
 string read_version_dependent_file(const string &base, const string &extension)
 {
 
 string read_version_dependent_file(const string &base, const string &extension)
 {

-       if (movit_shader_model == MOVIT_GLSL_130) {
+       if (movit_shader_model == MOVIT_GLSL_130_AS_110) {
+               string contents = read_file(base + ".130." + extension);
+               assert(contents.find("#version 130") == 0);
+               contents[10] = '1';  // Change from 130 to 110.
+               return contents;
+       } else if (movit_shader_model == MOVIT_GLSL_130) {

                return read_file(base + ".130." + extension);
        } else if (movit_shader_model == MOVIT_GLSL_150) {
                return read_file(base + ".150." + extension);
                return read_file(base + ".130." + extension);
        } else if (movit_shader_model == MOVIT_GLSL_150) {
                return read_file(base + ".150." + extension);

diff --git a/version.h b/version.h
index d8b22392b8ca185f48039654c8fc55e1d6dacdaa..1d6ab91d41bc8502f32a0c719ab3c0019cb98816 100644 (file)
--- a/version.h
+++ b/version.h
@@ -5,6 +5,6 @@
 // changes, even within git versions. There is no specific version
 // documentation outside the regular changelogs, though.
 
 // changes, even within git versions. There is no specific version
 // documentation outside the regular changelogs, though.
 

-#define MOVIT_VERSION 13
+#define MOVIT_VERSION 14

 
 #endif // !defined(_MOVIT_VERSION_H)
 
 #endif // !defined(_MOVIT_VERSION_H)