lucent/cocco-ddraw
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

preliminary libretro GLSL shader support https://github.com/libretro/glsl-shaders

Browse source
This commit is contained in:
FunkyFr3sh 2018-05-12 12:28:07 +02:00
parent 0e511f1a7d
commit 87450e320f
6 changed files with 284 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

54
src/opengl.c
View file

@ -23,6 +23,7 @@ PFNGLUNIFORM1FVPROC glUniform1fv = NULL;
PFNGLUNIFORM2FVPROC glUniform2fv = NULL;
PFNGLUNIFORM3FVPROC glUniform3fv = NULL;
PFNGLUNIFORM4FVPROC glUniform4fv = NULL;
PFNGLUNIFORM4FPROC glUniform4f = NULL;
PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv = NULL;
PFNGLGETATTRIBLOCATIONPROC glGetAttribLocation = NULL;
PFNGLVERTEXATTRIB1FPROC glVertexAttrib1f = NULL;
@ -47,6 +48,7 @@ PFNGLGENBUFFERSPROC glGenBuffers = NULL;
PFNGLBINDBUFFERPROC glBindBuffer = NULL;
PFNGLBUFFERDATAPROC glBufferData = NULL;
PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer = NULL;
PFNGLDELETEBUFFERSPROC glDeleteBuffers = NULL;
PFNGLGENBUFFERSARBPROC glGenBuffersARB = NULL;
PFNGLBINDBUFFERARBPROC glBindBufferARB = NULL;
@ -59,6 +61,13 @@ PFNGLACTIVETEXTUREARBPROC glActiveTexture = NULL;
PFNGLCLIENTACTIVETEXTUREPROC glClientActiveTexture = NULL;
PFNGLMULTITEXCOORD2FPROC glMultiTexCoord2f = NULL;
PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers = NULL;
PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer = NULL;
PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D = NULL;
PFNGLDRAWBUFFERSPROC glDrawBuffers = NULL;
PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus = NULL;
PFNGLDELETEFRAMEBUFFERSPROC glDeleteFramebuffers = NULL;
void OpenGL_Init()
{
// Program
@ -81,6 +90,7 @@ void OpenGL_Init()
glUniform2fv = (PFNGLUNIFORM2FVPROC)wglGetProcAddress("glUniform2fv");
glUniform3fv = (PFNGLUNIFORM3FVPROC)wglGetProcAddress("glUniform3fv");
glUniform4fv = (PFNGLUNIFORM4FVPROC)wglGetProcAddress("glUniform4fv");
glUniform4f = (PFNGLUNIFORM4FPROC)wglGetProcAddress("glUniform4f");
glUniformMatrix4fv = (PFNGLUNIFORMMATRIX4FVPROC)wglGetProcAddress("glUniformMatrix4fv");
glGetAttribLocation = (PFNGLGETATTRIBLOCATIONPROC)wglGetProcAddress("glGetAttribLocation");
glVertexAttrib1f = (PFNGLVERTEXATTRIB1FPROC)wglGetProcAddress("glVertexAttrib1f");
@ -103,6 +113,7 @@ void OpenGL_Init()
glBindBuffer = (PFNGLBINDBUFFERPROC)wglGetProcAddress("glBindBuffer");
glBufferData = (PFNGLBUFFERDATAPROC)wglGetProcAddress("glBufferData");
glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC)wglGetProcAddress("glVertexAttribPointer");
glDeleteBuffers = (PFNGLDELETEBUFFERSPROC)wglGetProcAddress("glDeleteBuffers");
glGenBuffersARB = (PFNGLGENBUFFERSARBPROC)wglGetProcAddress("glGenBuffersARB");
glBindBufferARB = (PFNGLBINDBUFFERARBPROC)wglGetProcAddress("glBindBufferARB");
@ -114,6 +125,13 @@ void OpenGL_Init()
glActiveTexture = (PFNGLACTIVETEXTUREARBPROC)wglGetProcAddress("glActiveTexture");
glClientActiveTexture = (PFNGLCLIENTACTIVETEXTUREPROC)wglGetProcAddress("glClientActiveTexture");
glMultiTexCoord2f = (PFNGLMULTITEXCOORD2FPROC)wglGetProcAddress("glMultiTexCoord2f");
glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)wglGetProcAddress("glGenFramebuffers");
glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)wglGetProcAddress("glBindFramebuffer");
glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)wglGetProcAddress("glFramebufferTexture2D");
glDrawBuffers = (PFNGLDRAWBUFFERSPROC)wglGetProcAddress("glDrawBuffers");
glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)wglGetProcAddress("glCheckFramebufferStatus");
glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC)wglGetProcAddress("glDeleteFramebuffers");
}
BOOL OpenGL_ExtExists(char *ext)
@ -127,7 +145,7 @@ BOOL OpenGL_ExtExists(char *ext)
return FALSE;
}
GLuint OpenGL_BuildProgram(const GLchar **vertSource, const GLchar **fragSource)
GLuint OpenGL_BuildProgram(const GLchar *vertSource, const GLchar *fragSource)
{
if (!glCreateShader || !glShaderSource || !glCompileShader || !glCreateProgram ||
!glAttachShader || !glLinkProgram || !glUseProgram || !glDetachShader)
@ -139,8 +157,11 @@ GLuint OpenGL_BuildProgram(const GLchar **vertSource, const GLchar **fragSource)
if (!vertShader || !fragShader)
return 0;
glShaderSource(vertShader, 1, vertSource, NULL);
glShaderSource(fragShader, 1, fragSource, NULL);
const GLchar *vertSrc[2] = { "#define VERTEX\n", vertSource };
const GLchar *fragSrc[2] = { "#define FRAGMENT\n", fragSource };
glShaderSource(vertShader, 2, vertSrc, NULL);
glShaderSource(fragShader, 2, fragSrc, NULL);
GLint isCompiled = 0;
@ -199,3 +220,30 @@ GLuint OpenGL_BuildProgram(const GLchar **vertSource, const GLchar **fragSource)
return program;
}
GLuint OpenGL_BuildProgramFromFile(const char *filePath)
{
GLuint program = 0;
FILE *file = fopen(filePath, "rb");
if (file)
{
fseek(file, 0, SEEK_END);
long fileSize = ftell(file);
fseek(file, 0, SEEK_SET);
char *source = malloc(fileSize + 1);
if (source)
{
fread(source, fileSize, 1, file);
fclose(file);
source[fileSize] = 0;
program = OpenGL_BuildProgram(source, source);
free(source);
}
}
return program;
}