void HudShader::useProgram() {
Shader::useProgram();
if (_projectionMatrixDirty || _modelMatrixDirty) {
glm::mat4 mvpMatrix = _projectionMatrix * _modelMatrix;
GL(UniformMatrix4fv(_mvpMatrixLoc, 1, GL_FALSE, glm::value_ptr(mvpMatrix)));
_projectionMatrixDirty = false;
_modelMatrixDirty = false;
}
if (_colorDirty) {
GL(Uniform4fv(_colorLoc, 1, glm::value_ptr(_color)));
_colorDirty = false;
}
}
void GrGpuGLShaders::flushColorMatrix() {
const ProgramDesc& desc = fCurrentProgram.getDesc();
int matrixUni = fProgramData->fUniLocations.fColorMatrixUni;
int vecUni = fProgramData->fUniLocations.fColorMatrixVecUni;
if (GrGLProgram::kUnusedUniform != matrixUni
&& GrGLProgram::kUnusedUniform != vecUni) {
const float* m = this->getDrawState().getColorMatrix();
GrGLfloat mt[] = {
m[0], m[5], m[10], m[15],
m[1], m[6], m[11], m[16],
m[2], m[7], m[12], m[17],
m[3], m[8], m[13], m[18],
};
static float scale = 1.0f / 255.0f;
GrGLfloat vec[] = {
m[4] * scale, m[9] * scale, m[14] * scale, m[19] * scale,
};
GL_CALL(UniformMatrix4fv(matrixUni, 1, false, mt));
GL_CALL(Uniform4fv(vecUni, 1, vec));
}
}
GL_APICALL void GL_APIENTRY glUniformMatrix4fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat* value)
{
CONTEXT_EXEC(UniformMatrix4fv(location, count, transpose, value));
}