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Updated glad.

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This commit is contained in:
Camilla Berglund 2015-01-21 16:19:35 +01:00
parent d79beb9539
commit 4596663232
2 changed files with 44 additions and 14 deletions
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41
deps/glad.c vendored
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@ -1,3 +1,4 @@
#include <stdio.h>
#include <string.h>
#include <glad/glad.h>
@ -687,10 +688,34 @@ static void find_extensionsGL(void) {
}
static void find_coreGL(void) {
const char *v = (const char *)glGetString(GL_VERSION);
int major = v[0] - '0';
int minor = v[2] - '0';
GLVersion.major = major; GLVersion.minor = minor;
/* Thank you @elmindreda
* https://github.com/elmindreda/greg/blob/master/templates/greg.c.in#L176
* https://github.com/glfw/glfw/blob/master/src/context.c#L36
*/
int i, major, minor;
const char* version;
const char* prefixes[] = {
"OpenGL ES-CM ",
"OpenGL ES-CL ",
"OpenGL ES ",
NULL
};
version = (const char*) glGetString(GL_VERSION);
if (!version) return;
for (i = 0; prefixes[i]; i++) {
const size_t length = strlen(prefixes[i]);
if (strncmp(version, prefixes[i], length) == 0) {
version += length;
break;
}
}
sscanf(version, "%d.%d", &major, &minor);
GLVersion.major = major; GLVersion.minor = minor;
GLAD_GL_VERSION_1_0 = (major == 1 && minor >= 0) || major > 1;
GLAD_GL_VERSION_1_1 = (major == 1 && minor >= 1) || major > 1;
GLAD_GL_VERSION_1_2 = (major == 1 && minor >= 2) || major > 1;
@ -704,10 +729,11 @@ static void find_coreGL(void) {
GLAD_GL_VERSION_3_2 = (major == 3 && minor >= 2) || major > 3;
}
void gladLoadGLLoader(GLADloadproc load) {
int gladLoadGLLoader(GLADloadproc load) {
GLVersion.major = 0; GLVersion.minor = 0;
glGetString = (PFNGLGETSTRINGPROC)load("glGetString");
if(glGetString == NULL) return;
if(glGetString == NULL) return 0;
if(glGetString(GL_VERSION) == NULL) return 0;
find_coreGL();
load_GL_VERSION_1_0(load);
load_GL_VERSION_1_1(load);
@ -722,7 +748,6 @@ void gladLoadGLLoader(GLADloadproc load) {
load_GL_VERSION_3_2(load);
find_extensionsGL();
return;
return GLVersion.major != 0 || GLVersion.minor != 0;
}

17
deps/glad/glad.h vendored
View File

@ -22,15 +22,17 @@
#define APIENTRYP APIENTRY *
#endif
extern struct gladGLversionStruct {
int major;
int minor;
} GLVersion;
#ifdef __cplusplus
extern "C" {
#endif
struct gladGLversionStruct {
int major;
int minor;
};
extern struct gladGLversionStruct GLVersion;
typedef void* (* GLADloadproc)(const char *name);
#ifndef GLAPI
@ -58,7 +60,7 @@ typedef void* (* GLADloadproc)(const char *name);
# define GLAPI extern
# endif
#endif
GLAPI void gladLoadGLLoader(GLADloadproc);
GLAPI int gladLoadGLLoader(GLADloadproc);
#include <stddef.h>
#include <KHR/khrplatform.h>
@ -836,11 +838,13 @@ typedef GLintptr GLvdpauSurfaceNV;
#define GL_UNIFORM_BUFFER_START 0x8A29
#define GL_UNIFORM_BUFFER_SIZE 0x8A2A
#define GL_MAX_VERTEX_UNIFORM_BLOCKS 0x8A2B
#define GL_MAX_GEOMETRY_UNIFORM_BLOCKS 0x8A2C
#define GL_MAX_FRAGMENT_UNIFORM_BLOCKS 0x8A2D
#define GL_MAX_COMBINED_UNIFORM_BLOCKS 0x8A2E
#define GL_MAX_UNIFORM_BUFFER_BINDINGS 0x8A2F
#define GL_MAX_UNIFORM_BLOCK_SIZE 0x8A30
#define GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS 0x8A31
#define GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS 0x8A32
#define GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS 0x8A33
#define GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT 0x8A34
#define GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH 0x8A35
@ -859,6 +863,7 @@ typedef GLintptr GLvdpauSurfaceNV;
#define GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS 0x8A42
#define GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES 0x8A43
#define GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER 0x8A44
#define GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER 0x8A45
#define GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER 0x8A46
#define GL_INVALID_INDEX 0xFFFFFFFF
#define GL_CONTEXT_CORE_PROFILE_BIT 0x00000001