diff options
Diffstat (limited to 'source/blender/gpu/intern/gpu_framebuffer.c')
| -rw-r--r-- | source/blender/gpu/intern/gpu_framebuffer.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/source/blender/gpu/intern/gpu_framebuffer.c b/source/blender/gpu/intern/gpu_framebuffer.c index b911f6d9c7f..dbcf0dc4568 100644 --- a/source/blender/gpu/intern/gpu_framebuffer.c +++ b/source/blender/gpu/intern/gpu_framebuffer.c @@ -53,6 +53,15 @@ struct GPUFrameBuffer { GPUTexture *depthtex; }; +static GLenum convert_buffer_bits_to_gl(GPUFrameBufferBits bits) +{ + GLbitfield mask = 0; + mask |= (bits & GPU_DEPTH_BIT) ? GL_DEPTH_BUFFER_BIT : 0; + mask |= (bits & GPU_STENCIL_BIT) ? GL_STENCIL_BUFFER_BIT : 0; + mask |= (bits & GPU_COLOR_BIT) ? GL_COLOR_BUFFER_BIT : 0; + return mask; +} + static void gpu_print_framebuffer_error(GLenum status, char err_out[256]) { const char *format = "GPUFrameBuffer: framebuffer status %s\n"; @@ -439,6 +448,40 @@ void GPU_framebuffer_restore(void) } } +#define CHECK_FRAMEBUFFER_IS_BOUND(_fb) \ + BLI_assert(GPU_framebuffer_bound(_fb)); \ + UNUSED_VARS_NDEBUG(_fb); + +/* Needs to be done after binding. */ +void GPU_framebuffer_viewport_set(GPUFrameBuffer *fb, int x, int y, int w, int h) +{ + CHECK_FRAMEBUFFER_IS_BOUND(fb); + + glViewport(x, y, w, h); +} + +void GPU_framebuffer_clear( + GPUFrameBuffer *fb, GPUFrameBufferBits buffers, + const float clear_col[4], float clear_depth, unsigned int clear_stencil) +{ + CHECK_FRAMEBUFFER_IS_BOUND(fb); + + if (buffers & GPU_COLOR_BIT) { + glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); + glClearColor(clear_col[0], clear_col[1], clear_col[2], clear_col[3]); + } + if (buffers & GPU_DEPTH_BIT) { + glDepthMask(GL_TRUE); + glClearDepth(clear_depth); + } + if (buffers & GPU_STENCIL_BIT) { + glStencilMask(clear_stencil); + } + + GLbitfield mask = convert_buffer_bits_to_gl(buffers); + glClear(mask); +} + void GPU_framebuffer_blit( GPUFrameBuffer *fb_read, int read_slot, GPUFrameBuffer *fb_write, int write_slot, bool use_depth, bool use_stencil) |