diff options
Diffstat (limited to 'src/buffer/vertex/texture_display_vertex_buffer.cc')
-rw-r--r-- | src/buffer/vertex/texture_display_vertex_buffer.cc | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/buffer/vertex/texture_display_vertex_buffer.cc b/src/buffer/vertex/texture_display_vertex_buffer.cc new file mode 100644 index 0000000..005ea76 --- /dev/null +++ b/src/buffer/vertex/texture_display_vertex_buffer.cc @@ -0,0 +1,46 @@ +#include "texture_display_vertex_buffer.h" + +TextureDisplayVertexBuffer::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::~TextureDisplayVertexBuffer() { + glDeleteBuffers(1, &_buffer); + glDeleteVertexArrays(1, &_array); +} + +GLuint TextureDisplayVertexBuffer::getBuffer() const { + return _buffer; +} + +void TextureDisplayVertexBuffer::draw(const std::vector<GLuint>& textures) const { + glBindVertexArray(_array); + glBindTextures(textures[0], textures.size(), textures.data()); + glDrawArrays(GL_TRIANGLES, 0, 6); +} |