ShuriZma
/
melonDS
mirror of https://github.com/melonDS-emu/melonDS.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

here, have shader shit

This commit is contained in:
Arisotura 2019-04-09 23:23:24 +02:00
parent 00341bbae5
commit 32c75e20a6
1 changed files with 133 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

133
src/GPU3D_OpenGL43.cpp
View File

@ -43,6 +43,44 @@ PFNGLMAPBUFFERRANGEPROC glMapBufferRange;
PFNGLUNMAPBUFFERPROC glUnmapBuffer;
PFNGLBUFFERDATAPROC glBufferData;
PFNGLCREATESHADERPROC glCreateShader;
PFNGLSHADERSOURCEPROC glShaderSource;
PFNGLCOMPILESHADERPROC glCompileShader;
PFNGLCREATEPROGRAMPROC glCreateProgram;
PFNGLATTACHSHADERPROC glAttachShader;
PFNGLLINKPROGRAMPROC glLinkProgram;
PFNGLUSEPROGRAMPROC glUseProgram;
PFNGLGETSHADERIVPROC glGetShaderiv;
PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog;
PFNGLGETPROGRAMIVPROC glGetProgramiv;
PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog;
PFNGLDELETESHADERPROC glDeleteShader;
PFNGLDELETEPROGRAMPROC glDeleteProgram;
const char* kRenderVS = R"(#version 400
in vec4 vPosition;
void main()
{
// burp
gl_Position = vPosition;
}
)";
const char* kRenderFS = R"(#version 400
out vec4 oColor;
void main()
{
oColor = vec4(0,1,1,1);
}
)";
GLuint RenderShader[3];
GLuint FramebufferID, PixelbufferID;
u8 Framebuffer[256*192*4];
@ -68,14 +106,109 @@ bool InitGLExtensions()
LOADPROC(GLUNMAPBUFFER, glUnmapBuffer);
LOADPROC(GLBUFFERDATA, glBufferData);
LOADPROC(GLCREATESHADER, glCreateShader);
LOADPROC(GLSHADERSOURCE, glShaderSource);
LOADPROC(GLCOMPILESHADER, glCompileShader);
LOADPROC(GLCREATEPROGRAM, glCreateProgram);
LOADPROC(GLATTACHSHADER, glAttachShader);
LOADPROC(GLLINKPROGRAM, glLinkProgram);
LOADPROC(GLUSEPROGRAM, glUseProgram);
LOADPROC(GLGETSHADERIV, glGetShaderiv);
LOADPROC(GLGETSHADERINFOLOG, glGetShaderInfoLog);
LOADPROC(GLGETPROGRAMIV, glGetProgramiv);
LOADPROC(GLGETPROGRAMINFOLOG, glGetProgramInfoLog);
LOADPROC(GLDELETESHADER, glDeleteShader);
LOADPROC(GLDELETEPROGRAM, glDeleteProgram);
#undef LOADPROC
return true;
}
bool BuildShaderProgram(const char* vs, const char* fs, GLuint* ids, const char* name)
{
int len;
int res;
ids[0] = glCreateShader(GL_VERTEX_SHADER);
len = strlen(vs);
glShaderSource(ids[0], 1, &vs, &len);
glCompileShader(ids[0]);
glGetShaderiv(ids[0], GL_COMPILE_STATUS, &res);
if (res != GL_TRUE)
{
glGetShaderiv(ids[0], GL_INFO_LOG_LENGTH, &res);
if (res < 1) res = 1024;
char* log = new char[res+1];
glGetShaderInfoLog(ids[0], res+1, NULL, log);
printf("OpenGL: failed to compile vertex shader %s: %s\n", name, log);
delete[] log;
glDeleteShader(ids[0]);
return false;
}
ids[1] = glCreateShader(GL_FRAGMENT_SHADER);
len = strlen(vs);
glShaderSource(ids[1], 1, &fs, &len);
glCompileShader(ids[1]);
glGetShaderiv(ids[1], GL_COMPILE_STATUS, &res);
if (res != GL_TRUE)
{
glGetShaderiv(ids[1], GL_INFO_LOG_LENGTH, &res);
if (res < 1) res = 1024;
char* log = new char[res+1];
glGetShaderInfoLog(ids[1], res+1, NULL, log);
printf("OpenGL: failed to compile fragment shader %s: %s\n", name, log);
delete[] log;
glDeleteShader(ids[0]);
glDeleteShader(ids[1]);
return false;
}
ids[2] = glCreateProgram();
glAttachShader(ids[2], ids[0]);
glAttachShader(ids[2], ids[1]);
glLinkProgram(ids[2]);
glGetProgramiv(ids[2], GL_LINK_STATUS, &res);
if (res != GL_TRUE)
{
glGetProgramiv(ids[2], GL_INFO_LOG_LENGTH, &res);
if (res < 1) res = 1024;
char* log = new char[res+1];
glGetProgramInfoLog(ids[2], res+1, NULL, log);
printf("OpenGL: failed to link program %s: %s\n", name, log);
delete[] log;
glDeleteShader(ids[0]);
glDeleteShader(ids[1]);
glDeleteProgram(ids[2]);
return false;
}
return true;
}
bool Init()
{
if (!InitGLExtensions()) return false;
const GLubyte* renderer = glGetString(GL_RENDERER); // get renderer string
const GLubyte* version = glGetString(GL_VERSION); // version as a string
printf("OpenGL: renderer: %s\n", renderer);
printf("OpenGL: version: %s\n", version);
if (!BuildShaderProgram(kRenderVS, kRenderFS, RenderShader, "RenderShader"))
return false;
u8* test_tex = new u8[256*192*4];
u8* ptr = test_tex;
for (int y = 0; y < 192; y++)