1 files changed, 64 insertions, 0 deletions
diff --git a/samples/OpenGL/compute_shader/solid.c b/samples/OpenGL/compute_shader/solid.c
new file mode 100644
index 0000000..982e24a
--- /dev/null
+++ b/samples/OpenGL/compute_shader/solid.c
@@ -0,0 +1,64 @@
+#include <GL/glew.h>
+#include "solid.h"
+
+#include "shaderloader/shaderloader.h"
+#include "debuggl/debuggl.h"
+
+#include <stdio.h>
+
+static struct {
+	GLint program;
+	GLint u_modelview;
+	GLint u_projection;
+	GLint u_color;
+} solid;
+
+int solid_load(void)
+{
+	debuggl_check( "pre solid_load check" );
+
+	char const * const paths_vs[] = { "mvp.vs.glsl", 0 };
+	char const * const paths_fs[] = { "solid.fs.glsl", 0 };
+	shader_program_sources const sources[] = {
+		{GL_VERTEX_SHADER,   paths_vs},
+		{GL_FRAGMENT_SHADER, paths_fs},
+		{0,0}
+	};
+
+	if( solid.program ) {
+		debuggl_check( glDeleteProgram(solid.program) );
+		solid.program = 0;
+	}
+
+	solid.program = shader_program_load_from_files(sources);
+	if( !solid.program ) {
+		fprintf(stderr, "%s failed\n", __func__);
+		return -2;
+	}
+
+	debuggl_check( solid.u_modelview  = glGetProgramResourceLocation(solid.program, GL_UNIFORM, "u_modelview") );
+	debuggl_check( solid.u_projection = glGetProgramResourceLocation(solid.program, GL_UNIFORM, "u_projection") );
+	debuggl_check( solid.u_color      = glGetProgramResourceLocation(solid.program, GL_UNIFORM, "u_color") );
+
+	return 0;
+}
+
+int solid_draw(
+	GLenum primitive,
+	GLuint vao,
+	GLsizei count,
+	GLfloat const * const color,
+	GLfloat const * const modelview,
+	GLfloat const * const projection )
+{
+	debuggl_check( (void)"pre solid_draw check" );
+
+	debuggl_check( glBindVertexArray(vao) );
+	debuggl_check( glUseProgram(solid.program) );
+	debuggl_check( glUniform4fv(solid.u_color, 1, color) );
+	debuggl_check( glUniformMatrix4fv(solid.u_modelview, 1, GL_FALSE, modelview) );
+	debuggl_check( glUniformMatrix4fv(solid.u_projection, 1, GL_FALSE, projection) );
+	debuggl_check( glDrawArrays(primitive, 0, count) );
+	debuggl_check( glUseProgram(0) );
+	debuggl_check( glBindVertexArray(0) );
+}