diff options
| author | Manuel Stoeckl <code@mstoeckl.com> | 2022-07-20 19:21:14 -0400 |
|---|---|---|
| committer | Manuel Stoeckl <code@mstoeckl.com> | 2022-07-20 20:02:46 -0400 |
| commit | 972a5cdf7a9701a266119d60da48624ca8ebf703 (patch) | |
| tree | f3bc545a48c836001f78272bca9ea8a01a0bb57c /render/gles2 | |
| parent | add44b3e2e4ff7ef98b16813fb3c9e1d8b398008 (diff) | |
render/gles2: simplify alpha depth check
GL_ALPHA_BITS is the number of bits of the alpha channel of the
currently bound frame buffer's color buffer -- which is precisely
renderer->current_buffer->rbo . Thus, instead of binding the color
buffer and checking its properties, we can query the already bound
frame buffer.
Note that GL_IMPLEMENTATION_COLOR_READ_{FORMAT,TYPE} are also
properties of frame buffer's color buffer.
Diffstat (limited to 'render/gles2')
| -rw-r--r-- | render/gles2/renderer.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c index 5a2f31b5..c00a7f51 100644 --- a/render/gles2/renderer.c +++ b/render/gles2/renderer.c @@ -395,15 +395,10 @@ static uint32_t gles2_preferred_read_format( push_gles2_debug(renderer); - GLint gl_format = -1, gl_type = -1; + GLint gl_format = -1, gl_type = -1, alpha_size = -1; glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT, &gl_format); glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE, &gl_type); - - EGLint alpha_size = -1; - glBindRenderbuffer(GL_RENDERBUFFER, renderer->current_buffer->rbo); - glGetRenderbufferParameteriv(GL_RENDERBUFFER, - GL_RENDERBUFFER_ALPHA_SIZE, &alpha_size); - glBindRenderbuffer(GL_RENDERBUFFER, 0); + glGetIntegerv(GL_ALPHA_BITS, &alpha_size); pop_gles2_debug(renderer); |