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Some refactoring of shaders

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jojo61
2019-12-23 14:53:30 +01:00
parent 463109fcb6
commit 68fa4fe4dc
2 changed files with 57 additions and 241 deletions
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134
openglosd.cpp
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@@ -21,107 +21,17 @@ void ConvertColor(const GLint &colARGB, glm::vec4 &col) {
****************************************************************************************/
#ifdef CUVID
const char *rectVertexShader =
"#version 330 core \n\
\
layout (location = 0) in vec2 position; \
out vec4 rectCol; \
uniform vec4 inColor; \
uniform mat4 projection; \
\
void main() \
{ \
gl_Position = projection * vec4(position.x, position.y, 0.0, 1.0); \
rectCol = inColor; \
} \
";
const char *rectFragmentShader =
"#version 330 core \n\
\
in vec4 rectCol; \
out vec4 color; \
\
void main() \
{ \
color = rectCol; \
} \
";
const char *textureVertexShader =
"#version 330 core \n\
\
layout (location = 0) in vec2 position; \
layout (location = 1) in vec2 texCoords; \
\
out vec2 TexCoords; \
out vec4 alphaValue;\
\
uniform mat4 projection; \
uniform vec4 alpha; \
\
void main() \
{ \
gl_Position = projection * vec4(position.x, position.y, 0.0, 1.0); \
TexCoords = texCoords; \
alphaValue = alpha; \
} \
";
const char *textureFragmentShader =
"#version 330 core \n\
in vec2 TexCoords; \
in vec4 alphaValue; \
out vec4 color; \
\
uniform sampler2D screenTexture; \
\
void main() \
{ \
color = texture(screenTexture, TexCoords) * alphaValue; \
} \
";
const char *textVertexShader =
"#version 330 core \n\
\
layout (location = 0) in vec2 position; \
layout (location = 1) in vec2 texCoords; \
\
out vec2 TexCoords; \
out vec4 textColor; \
\
uniform mat4 projection; \
uniform vec4 inColor; \
\
void main() \
{ \
gl_Position = projection * vec4(position.x, position.y, 0.0, 1.0); \
TexCoords = texCoords; \
textColor = inColor; \
} \
";
const char *textFragmentShader =
"#version 330 core \n\
in vec2 TexCoords; \
in vec4 textColor; \
\
out vec4 color; \
\
uniform sampler2D glyphTexture; \
\
void main() \
{ \
vec4 sampled = vec4(1.0, 1.0, 1.0, texture(glyphTexture, TexCoords).r); \
color = textColor * sampled; \
} \
";
const char *glversion = "#version 330 core ";
#else
#ifdef RASPI
const char *glversion = "#version 300 es";
#else
const char *glversion = " ";
#endif
#endif
const char *rectVertexShader =
"\n \
"%s\n \
\
layout (location = 0) in vec2 position; \
out vec4 rectCol; \
@@ -136,7 +46,7 @@ void main() \
";
const char *rectFragmentShader =
"\n \
"%s\n \
\
precision mediump float; \
in vec4 rectCol; \
@@ -149,7 +59,7 @@ void main() \
";
const char *textureVertexShader =
"\n \
"%s\n \
\
layout (location = 0) in vec2 position; \
layout (location = 1) in vec2 texCoords; \
@@ -169,7 +79,7 @@ void main() \
";
const char *textureFragmentShader =
"\n \
"%s\n \
precision mediump float; \
in vec2 TexCoords; \
in vec4 alphaValue; \
@@ -184,7 +94,7 @@ void main() \
";
const char *textVertexShader =
"\n \
"%s\n \
\
layout (location = 0) in vec2 position; \
layout (location = 1) in vec2 texCoords; \
@@ -204,7 +114,7 @@ void main() \
";
const char *textFragmentShader =
"\n \
"%s\n \
precision mediump float; \
in vec2 TexCoords; \
in vec4 textColor; \
@@ -219,7 +129,7 @@ void main() \
color = textColor * sampled; \
} \
";
#endif
///
/// GLX check error.
///
@@ -300,20 +210,27 @@ void cShader::SetMatrix4(const GLchar *name, const glm::mat4 &matrix) {
bool cShader::Compile(const char *vertexCode, const char *fragmentCode) {
GLuint sVertex, sFragment;
char *buffer = (char *)malloc(1000);
// Vertex Shader
sVertex = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(sVertex, 1, &vertexCode, NULL);
sprintf(buffer,vertexCode,glversion);
glShaderSource(sVertex, 1, (const GLchar**) &buffer, NULL);
glCompileShader(sVertex);
// esyslog("[softhddev]:SHADER:VERTEX %s\n",vertexCode);
if (!CheckCompileErrors(sVertex))
if (!CheckCompileErrors(sVertex)) {
free(buffer);
return false;
}
// Fragment Shader
sFragment = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(sFragment, 1, &fragmentCode, NULL);
sprintf(buffer,fragmentCode,glversion);
glShaderSource(sFragment, 1, (const GLchar**)&buffer, NULL);
glCompileShader(sFragment);
// esyslog("[softhddev]:SHADER:FRAGMENT %s\n",fragmentCode);
if (!CheckCompileErrors(sFragment))
if (!CheckCompileErrors(sFragment)) {
free(buffer);
return false;
}
// link Program
id = glCreateProgram();
glAttachShader(id, sVertex);
@@ -324,6 +241,7 @@ bool cShader::Compile(const char *vertexCode, const char *fragmentCode) {
// Delete the shaders as they're linked into our program now and no longer necessery
glDeleteShader(sVertex);
glDeleteShader(sFragment);
free(buffer);
return true;
}