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Support getting FBO attachment with only 8 red bits

This commit is contained in:
rdb 2016-03-12 21:01:57 +01:00
parent 46562b700d
commit 5cfe2b89e7
2 changed files with 7 additions and 3 deletions
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2
makepanda/config.in
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@ -41,7 +41,7 @@ framebuffer-software #f
# consistent with the other framebuffer requirements.
depth-bits 1
color-bits 1
color-bits 1 1 1
alpha-bits 0
stencil-bits 0
multisamples 0

8
panda/src/display/frameBufferProperties.cxx
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@ -138,6 +138,9 @@ get_default() {
break;
case 1:
default_props.set_color_bits(color_bits[0]);
default_props.set_red_bits(1);
default_props.set_green_bits(1);
default_props.set_blue_bits(1);
break;
case 3:
default_props.set_color_bits(color_bits[0] + color_bits[1] + color_bits[2]);
@ -649,13 +652,14 @@ setup_color_texture(Texture *tex) const {
// as the below one would be generated dynamically by the GSG to reflect the
// formats that are supported for render-to-texture.
static const int num_formats = 13;
static const int num_formats = 15;
static const struct {
unsigned char color_bits, red_bits, green_bits, blue_bits, alpha_bits;
bool has_float;
Texture::Format format;
} formats[num_formats] = {
// { 1, 1, 0, 0, 0, false, Texture::F_red},
{ 1, 1, 0, 0, 0, false, Texture::F_red },
{ 1, 1, 1, 0, 0, false, Texture::F_rg },
{ 1, 1, 1, 1, 0, false, Texture::F_rgb },
{ 1, 1, 1, 1, 1, false, Texture::F_rgba },
{ 24, 8, 8, 8, 0, false, Texture::F_rgb8 },