Attachment 113256 Details for Bug 89026 – Reproducer

Reproducer

layered_renderbuffer.cc (text/plain), 2.19 KB, created by James Legg on 2015-02-07 23:46:59 UTC

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Creator: James Legg

Created: 2015-02-07 23:46:59 UTC

Size: 2.19 KB

patch

obsolete

>// Compile with:
>// c++ layered_renderbuffer.cc $(pkg-config --cflags --libs sdl2 gl)
>#define GL_GLEXT_PROTOTYPES 1
>#include <GL/gl.h>
>#include <SDL.h>
>#include <cassert>
>
>int main()
>{
>	if (SDL_Init(SDL_INIT_VIDEO) < 0)
>		assert(false);
>
>	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
>	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
>	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,
>		SDL_GL_CONTEXT_PROFILE_CORE);
>
>	SDL_Window * const window = SDL_CreateWindow(
>		"", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
>		640, 480, SDL_WINDOW_OPENGL);
>	assert(window);
>
>	const SDL_GLContext context = SDL_GL_CreateContext(window);
>	assert(context);
>
>	GLuint framebuffer;
>	glGenFramebuffers(1, &framebuffer);
>	glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebuffer);
>
>	GLuint texture;
>	glGenTextures(1, &texture);
>	glBindTexture(GL_TEXTURE_2D_ARRAY, texture);
>	glTexStorage3D(GL_TEXTURE_2D_ARRAY, 1, GL_RGBA8, 640, 480, 2);
>	
>	GLuint renderbuffers[2];
>	glGenRenderbuffers(2, &renderbuffers[0]);
>	glBindRenderbuffer(GL_RENDERBUFFER, renderbuffers[0]);
>	glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, 640, 480);
>	glBindRenderbuffer(GL_RENDERBUFFER, renderbuffers[1]);
>	glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, 640, 480);
>	
>	// This makes GL_COLOR_ATTACHMENT0 layered.
>	glFramebufferTexture(GL_DRAW_FRAMEBUFFER,
>		GL_COLOR_ATTACHMENT0, texture, 0);
>
>	// Replace the binding on GL_COLOR_ATTACHMENT0. Renderbuffers don't
>	// have layred state, but currently the layered state is preserved
>	// from the previously bound texture and this is used for framebuffer
>	// completeness tests.
>	glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER,
>		GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, renderbuffers[0]);
>	// This is not layered, so it conflicts with the incorrectly layered
>	// GL_COLOR_ATTACHMENT0.
>	glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER,
>		GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, renderbuffers[1]);
>
>	// The draw framebuffer should be framebuffer complete now.
>	const GLenum status = glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
>	assert(glGetError() == GL_NO_ERROR);
>	glClear(GL_COLOR_BUFFER_BIT);
>	const GLenum error = glGetError();
>	assert(status == GL_FRAMEBUFFER_COMPLETE);
>	assert(glGetError() == GL_NO_ERROR);
>}
>

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Attachments on bug 89026: 113255 | 113256 | 113257

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