+#include <GL/glew.h>
+#include <string>
+
#include "init.h"
-#include "opengl.h"
#include "util.h"
-#include <set>
-#include <string>
-
bool movit_initialized = false;
+MovitDebugLevel movit_debug_level = MOVIT_DEBUG_ON;
float movit_texel_subpixel_precision;
bool movit_srgb_textures_supported;
+// The rules for objects with nontrivial constructors in static scope
+// are somewhat convoluted, and easy to mess up. We simply have a
+// pointer instead (and never care to clean it up).
+std::string *movit_data_directory = NULL;
+
namespace {
void measure_texel_subpixel_precision()
check_error();
}
-void get_extensions(std::set<std::string> *extensions)
-{
- char *str = strdup(reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS)));
- for (char *ptr = strtok(str, " "); ptr != NULL; ptr = strtok(NULL, " ")) {
- extensions->insert(ptr);
- }
- free(str);
-}
-
void check_extensions()
{
- std::set<std::string> extensions;
- get_extensions(&extensions);
-
// We fundamentally need FBOs and floating-point textures.
- assert(extensions.count("GL_ARB_framebuffer_object") != 0);
- assert(extensions.count("GL_ARB_texture_float") != 0);
+ assert(glewIsSupported("GL_ARB_framebuffer_object") != 0);
+ assert(glewIsSupported("GL_ARB_texture_float") != 0);
// We assume that we can use non-power-of-two textures without restrictions.
- assert(extensions.count("GL_ARB_texture_non_power_of_two") != 0);
+ assert(glewIsSupported("GL_ARB_texture_non_power_of_two") != 0);
// We also need GLSL fragment shaders.
- assert(extensions.count("GL_ARB_fragment_shader") != 0);
- assert(extensions.count("GL_ARB_shading_language_100") != 0);
+ assert(glewIsSupported("GL_ARB_fragment_shader") != 0);
+ assert(glewIsSupported("GL_ARB_shading_language_100") != 0);
// FlatInput and YCbCrInput uses PBOs. (They could in theory do without,
// but no modern card would really not provide it.)
- assert(extensions.count("GL_ARB_pixel_buffer_object") != 0);
+ assert(glewIsSupported("GL_ARB_pixel_buffer_object") != 0);
// ResampleEffect uses RG textures to encode a two-component LUT.
- assert(extensions.count("GL_ARB_texture_rg") != 0);
+ assert(glewIsSupported("GL_ARB_texture_rg") != 0);
// sRGB texture decode would be nice, but are not mandatory
// (GammaExpansionEffect can do the same thing if needed).
- movit_srgb_textures_supported = extensions.count("GL_EXT_texture_sRGB");
+ movit_srgb_textures_supported = glewIsSupported("GL_EXT_texture_sRGB");
}
} // namespace
-void init_movit()
+void init_movit(const std::string& data_directory, MovitDebugLevel debug_level)
{
if (movit_initialized) {
return;
}
+ movit_data_directory = new std::string(data_directory);
+ movit_debug_level = debug_level;
+
+ glewInit();
+
// geez
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);