1. rcrnstn/glshader
  2. include
  3. glshader_glm.hpp
Browse code

Add uniform GLM

Robert Cranston authored on 16/05/2020 10:39:49
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include/glshader_glm.hpp
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+#ifndef GLSHADER_GLM_HPP_
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+#define GLSHADER_GLM_HPP_
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+
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+
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+#include <GL/glew.h>
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+
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+#include <glm/glm.hpp>
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+#include <glm/gtc/type_ptr.hpp>
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+
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+#include <glshader.hpp>
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+
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+
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+#define GLSHADER_UNIFORM_GLM_N_(N, GLM_TYPE, SUFFIX) \
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+    GLSHADER_UNIFORM( \
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+        glm::GLM_TYPE##N, \
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+        glUniform##N##SUFFIX##v( \
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+            location, 1, glm::value_ptr(value) \
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+        ); \
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+    )
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+
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+#define GLSHADER_UNIFORM_GLM_N_BOOL_(N) \
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+    GLSHADER_UNIFORM( \
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+        glm::bvec##N, \
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+        GLint int_value[N]; \
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+        for (auto i = 0; i < N; ++i) \
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+            int_value[i] = value[i]; \
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+        glUniform##N##iv( \
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+            location, 1, &int_value[0] \
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+        ); \
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+    )
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+
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+#define GLSHADER_UNIFORM_GLM_MATRIX_N_(N) \
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+    GLSHADER_UNIFORM( \
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+        glm::mat##N, \
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+        glUniformMatrix##N##fv( \
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+            location, 1, GL_FALSE, glm::value_ptr(value) \
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+        ); \
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+    )
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+
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+#define GLSHADER_UNIFORM_GLM_MATRIX_N_M_(N, M) \
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+    GLSHADER_UNIFORM( \
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+        glm::mat##N##x##M, \
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+        glUniformMatrix##N##x##M##fv( \
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+            location, 1, GL_FALSE, glm::value_ptr(value) \
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+        ); \
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+    )
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+
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+GLSHADER_UNIFORM_GLM_N_BOOL_(2)
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+GLSHADER_UNIFORM_GLM_N_BOOL_(3)
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+GLSHADER_UNIFORM_GLM_N_BOOL_(4)
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+GLSHADER_UNIFORM_GLM_N_(2, ivec, i)
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+GLSHADER_UNIFORM_GLM_N_(3, ivec, i)
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+GLSHADER_UNIFORM_GLM_N_(4, ivec, i)
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+GLSHADER_UNIFORM_GLM_N_(2, uvec, ui)
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+GLSHADER_UNIFORM_GLM_N_(3, uvec, ui)
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+GLSHADER_UNIFORM_GLM_N_(4, uvec, ui)
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+GLSHADER_UNIFORM_GLM_N_(2, vec, f)
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+GLSHADER_UNIFORM_GLM_N_(3, vec, f)
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+GLSHADER_UNIFORM_GLM_N_(4, vec, f)
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+
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+GLSHADER_UNIFORM_GLM_MATRIX_N_(2)
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+GLSHADER_UNIFORM_GLM_MATRIX_N_(3)
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+GLSHADER_UNIFORM_GLM_MATRIX_N_(4)
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+
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+GLSHADER_UNIFORM_GLM_MATRIX_N_M_(2, 3)
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+GLSHADER_UNIFORM_GLM_MATRIX_N_M_(2, 4)
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+GLSHADER_UNIFORM_GLM_MATRIX_N_M_(3, 2)
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+GLSHADER_UNIFORM_GLM_MATRIX_N_M_(3, 4)
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+GLSHADER_UNIFORM_GLM_MATRIX_N_M_(4, 2)
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+GLSHADER_UNIFORM_GLM_MATRIX_N_M_(4, 3)
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+
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+
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+#endif // GLSHADER_GLM_HPP_