72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
/*
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by korenkonder
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GitHub/GitLab: korenkonder
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*/
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#include "fbo.hpp"
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#include "../../AFTModsShared/types.hpp"
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namespace renderer {
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FBO::FBO() : flags(), width(), height(), buffer(), count(), textures() {
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}
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FBO::~FBO() {
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free();
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}
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#pragma warning(push)
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#pragma warning(disable: 6385)
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#pragma warning(disable: 6386)
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void FBO::init(int32_t width, int32_t height,
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GLuint* color_textures, int32_t count, GLuint depth_texture) {
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free();
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count = min_def(count, 8);
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this->width = width;
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this->height = height;
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this->count = count;
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flags = (Flags)0;
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if (depth_texture) {
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this->flags = DEPTH_ATTACHMENT;
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this->count++;
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}
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textures = new (_operator_new(sizeof(GLuint) * this->count)) GLuint[this->count];
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for (int32_t i = 0; i < count; i++)
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textures[i] = color_textures[i];
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if (flags & DEPTH_ATTACHMENT)
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textures[count] = depth_texture;
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glGenFramebuffers(1, &buffer);
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gl_rend_state.bind_framebuffer(buffer, true);
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for (int32_t i = 0; i < count; i++)
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glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + i, textures[i], 0);
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if (flags & DEPTH_ATTACHMENT)
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glFramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, textures[count], 0);
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GLenum color_attachments[8];
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for (int32_t i = 0; i < count; i++)
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color_attachments[i] = GL_COLOR_ATTACHMENT0 + i;
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glDrawBuffers(count, color_attachments);
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glCheckFramebufferStatus(GL_FRAMEBUFFER);
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gl_rend_state.bind_framebuffer(0);
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}
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#pragma warning(pop)
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void FBO::free() {
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if (buffer) {
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glDeleteFramebuffers(1, &buffer);
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buffer = 0;
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}
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if (textures) {
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_operator_delete(textures);
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textures = 0;
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}
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}
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}
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