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Replaced inline declarations with glext.h usage.

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master
Camilla Berglund ago%!(EXTRA string=15 years)
parent ba3ecfb8b2
commit a1ae18f7d4
1 changed files with 26 additions and 189 deletions
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  1. 215
      examples/heightmap.c

215
examples/heightmap.c
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@ -33,190 +33,34 @@
#define GLFW_NO_GLU 1
#include <GL/glfw3.h>
/* OpenGL 3.3 support
* Functions are effectively mapped in init_opengl() */
#ifndef GL_VERSION_3_0
/* no defines */
#endif
#ifndef GL_VERSION_2_0
typedef char GLchar;
#define GL_BLEND_EQUATION_RGB 0x8009
#define GL_VERTEX_ATTRIB_ARRAY_ENABLED 0x8622
#define GL_VERTEX_ATTRIB_ARRAY_SIZE 0x8623
#define GL_VERTEX_ATTRIB_ARRAY_STRIDE 0x8624
#define GL_VERTEX_ATTRIB_ARRAY_TYPE 0x8625
#define GL_CURRENT_VERTEX_ATTRIB 0x8626
#define GL_VERTEX_PROGRAM_POINT_SIZE 0x8642
#define GL_VERTEX_ATTRIB_ARRAY_POINTER 0x8645
#define GL_STENCIL_BACK_FUNC 0x8800
#define GL_STENCIL_BACK_FAIL 0x8801
#define GL_STENCIL_BACK_PASS_DEPTH_FAIL 0x8802
#define GL_STENCIL_BACK_PASS_DEPTH_PASS 0x8803
#define GL_MAX_DRAW_BUFFERS 0x8824
#define GL_DRAW_BUFFER0 0x8825
#define GL_DRAW_BUFFER1 0x8826
#define GL_DRAW_BUFFER2 0x8827
#define GL_DRAW_BUFFER3 0x8828
#define GL_DRAW_BUFFER4 0x8829
#define GL_DRAW_BUFFER5 0x882A
#define GL_DRAW_BUFFER6 0x882B
#define GL_DRAW_BUFFER7 0x882C
#define GL_DRAW_BUFFER8 0x882D
#define GL_DRAW_BUFFER9 0x882E
#define GL_DRAW_BUFFER10 0x882F
#define GL_DRAW_BUFFER11 0x8830
#define GL_DRAW_BUFFER12 0x8831
#define GL_DRAW_BUFFER13 0x8832
#define GL_DRAW_BUFFER14 0x8833
#define GL_DRAW_BUFFER15 0x8834
#define GL_BLEND_EQUATION_ALPHA 0x883D
#define GL_MAX_VERTEX_ATTRIBS 0x8869
#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A
#define GL_MAX_TEXTURE_IMAGE_UNITS 0x8872
#define GL_FRAGMENT_SHADER 0x8B30
#define GL_VERTEX_SHADER 0x8B31
#define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS 0x8B49
#define GL_MAX_VERTEX_UNIFORM_COMPONENTS 0x8B4A
#define GL_MAX_VARYING_FLOATS 0x8B4B
#define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS 0x8B4C
#define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS 0x8B4D
#define GL_SHADER_TYPE 0x8B4F
#define GL_FLOAT_VEC2 0x8B50
#define GL_FLOAT_VEC3 0x8B51
#define GL_FLOAT_VEC4 0x8B52
#define GL_INT_VEC2 0x8B53
#define GL_INT_VEC3 0x8B54
#define GL_INT_VEC4 0x8B55
#define GL_BOOL 0x8B56
#define GL_BOOL_VEC2 0x8B57
#define GL_BOOL_VEC3 0x8B58
#define GL_BOOL_VEC4 0x8B59
#define GL_FLOAT_MAT2 0x8B5A
#define GL_FLOAT_MAT3 0x8B5B
#define GL_FLOAT_MAT4 0x8B5C
#define GL_SAMPLER_1D 0x8B5D
#define GL_SAMPLER_2D 0x8B5E
#define GL_SAMPLER_3D 0x8B5F
#define GL_SAMPLER_CUBE 0x8B60
#define GL_SAMPLER_1D_SHADOW 0x8B61
#define GL_SAMPLER_2D_SHADOW 0x8B62
#define GL_DELETE_STATUS 0x8B80
#define GL_COMPILE_STATUS 0x8B81
#define GL_LINK_STATUS 0x8B82
#define GL_VALIDATE_STATUS 0x8B83
#define GL_INFO_LOG_LENGTH 0x8B84
#define GL_ATTACHED_SHADERS 0x8B85
#define GL_ACTIVE_UNIFORMS 0x8B86
#define GL_ACTIVE_UNIFORM_MAX_LENGTH 0x8B87
#define GL_SHADER_SOURCE_LENGTH 0x8B88
#define GL_ACTIVE_ATTRIBUTES 0x8B89
#define GL_ACTIVE_ATTRIBUTE_MAX_LENGTH 0x8B8A
#define GL_FRAGMENT_SHADER_DERIVATIVE_HINT 0x8B8B
#define GL_SHADING_LANGUAGE_VERSION 0x8B8C
#define GL_CURRENT_PROGRAM 0x8B8D
#define GL_POINT_SPRITE_COORD_ORIGIN 0x8CA0
#define GL_LOWER_LEFT 0x8CA1
#define GL_UPPER_LEFT 0x8CA2
#define GL_STENCIL_BACK_REF 0x8CA3
#define GL_STENCIL_BACK_VALUE_MASK 0x8CA4
#define GL_STENCIL_BACK_WRITEMASK 0x8CA5
#endif
#ifndef GL_VERSION_1_5
typedef ptrdiff_t GLintptr;
typedef ptrdiff_t GLsizeiptr;
#define GL_BUFFER_SIZE 0x8764
#define GL_BUFFER_USAGE 0x8765
#define GL_QUERY_COUNTER_BITS 0x8864
#define GL_CURRENT_QUERY 0x8865
#define GL_QUERY_RESULT 0x8866
#define GL_QUERY_RESULT_AVAILABLE 0x8867
#define GL_ARRAY_BUFFER 0x8892
#define GL_ELEMENT_ARRAY_BUFFER 0x8893
#define GL_ARRAY_BUFFER_BINDING 0x8894
#define GL_ELEMENT_ARRAY_BUFFER_BINDING 0x8895
#define GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING 0x889F
#define GL_READ_ONLY 0x88B8
#define GL_WRITE_ONLY 0x88B9
#define GL_READ_WRITE 0x88BA
#define GL_BUFFER_ACCESS 0x88BB
#define GL_BUFFER_MAPPED 0x88BC
#define GL_BUFFER_MAP_POINTER 0x88BD
#define GL_STREAM_DRAW 0x88E0
#define GL_STREAM_READ 0x88E1
#define GL_STREAM_COPY 0x88E2
#define GL_STATIC_DRAW 0x88E4
#define GL_STATIC_READ 0x88E5
#define GL_STATIC_COPY 0x88E6
#define GL_DYNAMIC_DRAW 0x88E8
#define GL_DYNAMIC_READ 0x88E9
#define GL_DYNAMIC_COPY 0x88EA
#define GL_SAMPLES_PASSED 0x8914
#endif
/* OpenGL 3.0 */
typedef void (APIENTRY * PFN_glGenVertexArrays)(GLsizei n, GLuint *arrays);
typedef void (APIENTRY * PFN_glBindVertexArray)(GLuint array);
typedef void (APIENTRY * PFN_glDeleteVertexArrays)(GLsizei n, GLuint *arrays);
/* OpenGL 2.0 */
typedef GLuint (APIENTRY * PFN_glCreateShader)(GLenum type);
typedef void (APIENTRY * PFN_glDeleteShader)(GLuint shader);
typedef void (APIENTRY * PFN_glCompileShader)(GLuint shader);
typedef void (APIENTRY * PFN_glShaderSource)(GLuint shader, GLsizei count, const GLchar* *string, const GLint *length);
typedef void (APIENTRY * PFN_glGetShaderiv)(GLuint shader, GLenum pname, GLint *params);
typedef void (APIENTRY * PFN_glGetShaderInfoLog)(GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
typedef GLuint (APIENTRY * PFN_glCreateProgram)(void);
typedef void (APIENTRY * PFN_glDeleteProgram)(GLuint program);
typedef void (APIENTRY * PFN_glAttachShader)(GLuint program, GLuint shader);
typedef void (APIENTRY * PFN_glLinkProgram)(GLuint program);
typedef void (APIENTRY * PFN_glGetProgramiv)(GLuint program, GLenum pname, GLint *params);
typedef void (APIENTRY * PFN_glGetProgramInfoLog)(GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
typedef void (APIENTRY * PFN_glValidateProgram)(GLuint program);
typedef void (APIENTRY * PFN_glUseProgram)(GLuint program);
typedef GLint (APIENTRY * PFN_glGetUniformLocation)(GLuint program, const GLchar *name);
typedef void (APIENTRY * PFN_glUniformMatrix4fv)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
typedef GLint (APIENTRY * PFN_glGetAttribLocation)(GLuint program, const GLchar *name);
typedef void (APIENTRY * PFN_glEnableVertexAttribArray)(GLuint index);
typedef void (APIENTRY * PFN_glVertexAttrib1f)(GLuint index, GLfloat x);
typedef void (APIENTRY * PFN_glVertexAttribPointer)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
/* OpenGL 1.5 */
typedef void (APIENTRY * PFN_glBindBuffer)(GLenum target, GLuint buffer);
typedef void (APIENTRY * PFN_glDeleteBuffers)(GLsizei n, const GLuint *buffers);
typedef void (APIENTRY * PFN_glGenBuffers)(GLsizei n, GLuint *buffers);
typedef void (APIENTRY * PFN_glBufferData)(GLenum target, GLsizeiptr size, const GLvoid *data, GLenum usage);
typedef void (APIENTRY * PFN_glBufferSubData)(GLenum target, GLintptr offset, GLsizeiptr size, const GLvoid *data);
#include <GL/glext.h>
/* OpenGL function pointers */
static PFN_glGenBuffers pglGenBuffers = NULL;
static PFN_glGenVertexArrays pglGenVertexArrays = NULL;
static PFN_glDeleteVertexArrays pglDeleteVertexArrays = NULL;
static PFN_glCreateShader pglCreateShader = NULL;
static PFN_glShaderSource pglShaderSource = NULL;
static PFN_glCompileShader pglCompileShader = NULL;
static PFN_glGetShaderiv pglGetShaderiv = NULL;
static PFN_glGetShaderInfoLog pglGetShaderInfoLog = NULL;
static PFN_glDeleteShader pglDeleteShader = NULL;
static PFN_glCreateProgram pglCreateProgram = NULL;
static PFN_glAttachShader pglAttachShader = NULL;
static PFN_glLinkProgram pglLinkProgram = NULL;
static PFN_glUseProgram pglUseProgram = NULL;
static PFN_glGetProgramiv pglGetProgramiv = NULL;
static PFN_glGetProgramInfoLog pglGetProgramInfoLog = NULL;
static PFN_glDeleteProgram pglDeleteProgram = NULL;
static PFN_glGetUniformLocation pglGetUniformLocation = NULL;
static PFN_glUniformMatrix4fv pglUniformMatrix4fv = NULL;
static PFN_glGetAttribLocation pglGetAttribLocation = NULL;
static PFNGLGENBUFFERSPROC pglGenBuffers = NULL;
static PFNGLGENVERTEXARRAYSPROC pglGenVertexArrays = NULL;
static PFNGLDELETEVERTEXARRAYSPROC pglDeleteVertexArrays = NULL;
static PFNGLCREATESHADERPROC pglCreateShader = NULL;
static PFNGLSHADERSOURCEPROC pglShaderSource = NULL;
static PFNGLCOMPILESHADERPROC pglCompileShader = NULL;
static PFNGLGETSHADERIVPROC pglGetShaderiv = NULL;
static PFNGLGETSHADERINFOLOGPROC pglGetShaderInfoLog = NULL;
static PFNGLDELETESHADERPROC pglDeleteShader = NULL;
static PFNGLCREATEPROGRAMPROC pglCreateProgram = NULL;
static PFNGLATTACHSHADERPROC pglAttachShader = NULL;
static PFNGLLINKPROGRAMPROC pglLinkProgram = NULL;
static PFNGLUSEPROGRAMPROC pglUseProgram = NULL;
static PFNGLGETPROGRAMIVPROC pglGetProgramiv = NULL;
static PFNGLGETPROGRAMINFOLOGPROC pglGetProgramInfoLog = NULL;
static PFNGLDELETEPROGRAMPROC pglDeleteProgram = NULL;
static PFNGLGETUNIFORMLOCATIONPROC pglGetUniformLocation = NULL;
static PFNGLUNIFORMMATRIX4FVPROC pglUniformMatrix4fv = NULL;
static PFNGLGETATTRIBLOCATIONPROC pglGetAttribLocation = NULL;
static PFNGLBINDVERTEXARRAYPROC pglBindVertexArray = NULL;
static PFNGLBUFFERDATAPROC pglBufferData = NULL;
static PFNGLBINDBUFFERPROC pglBindBuffer = NULL;
static PFNGLBUFFERSUBDATAPROC pglBufferSubData = NULL;
static PFNGLENABLEVERTEXATTRIBARRAYPROC pglEnableVertexAttribArray = NULL;
static PFNGLVERTEXATTRIBPOINTERPROC pglVertexAttribPointer = NULL;
/* Map height updates */
#define MAX_CIRCLE_SIZE (5.0f)
@ -235,13 +79,6 @@ static PFN_glGetAttribLocation pglGetAttribLocation = NULL;
/* OpenGL function pointers */
static PFN_glBindVertexArray pglBindVertexArray = NULL;
static PFN_glBufferData pglBufferData = NULL;
static PFN_glBindBuffer pglBindBuffer = NULL;
static PFN_glBufferSubData pglBufferSubData = NULL;
static PFN_glEnableVertexAttribArray pglEnableVertexAttribArray = NULL;
static PFN_glVertexAttribPointer pglVertexAttribPointer = NULL;
#define RESOLVE_GL_FCN(type, var, name) \
if (status == GL_TRUE) \
{\

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