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Diffstat (limited to 'src/buffer/vertex/texture_display_vertex_buffer.h')
-rw-r--r--src/buffer/vertex/texture_display_vertex_buffer.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/src/buffer/vertex/texture_display_vertex_buffer.h b/src/buffer/vertex/texture_display_vertex_buffer.h
new file mode 100644
index 0000000..6d4eec2
--- /dev/null
+++ b/src/buffer/vertex/texture_display_vertex_buffer.h
@@ -0,0 +1,57 @@
+#pragma once
+
+#include <vector>
+
+class TextureDisplayVertexBuffer {
+private:
+ const std::vector<GLfloat> _data;
+
+ GLuint _array;
+ GLuint _buffer;
+
+public:
+ TextureDisplayVertexBuffer():
+ _data{
+ -1.f, 1.f, 0.f, 1.f,
+ -1.f, -1.f, 0.f, 0.f,
+ 1.f, -1.f, 1.f, 0.f,
+
+ -1.f, 1.f, 0.f, 1.f,
+ 1.f, -1.f, 1.f, 0.f,
+ 1.f, 1.f, 1.f, 1.f
+ } {
+ glGenVertexArrays(1, &_array);
+ glGenBuffers(1, &_buffer);
+
+ glBindVertexArray(_array);
+ glBindBuffer(GL_ARRAY_BUFFER, _buffer);
+ glBufferData(
+ GL_ARRAY_BUFFER,
+ _data.size() * sizeof(GLfloat),
+ _data.data(),
+ GL_STATIC_DRAW
+ );
+
+ glEnableVertexAttribArray(0);
+ glVertexAttribPointer(
+ 0, 2, GL_FLOAT, GL_FALSE, 4*sizeof(GLfloat), (void*)0);
+ glEnableVertexAttribArray(1);
+ glVertexAttribPointer(
+ 1, 2, GL_FLOAT, GL_FALSE, 4*sizeof(GLfloat), (void*)(2*sizeof(GLfloat)));
+ }
+
+ ~TextureDisplayVertexBuffer() {
+ glDeleteBuffers(1, &_buffer);
+ glDeleteVertexArrays(1, &_array);
+ }
+
+ void draw(const std::vector<GLuint>& textures) const {
+ glBindVertexArray(_array);
+ glBindTextures(textures[0], textures.size(), textures.data());
+ glDrawArrays(GL_TRIANGLES, 0, 6);
+ }
+
+ GLuint getBuffer() const {
+ return _buffer;
+ }
+};