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GLES2: Added EXT_draw_buffers support.

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This commit is contained in:
Branimir Karadžić 2014-09-12 00:02:12 -07:00
parent 0c0304b65d
commit 506efdc072
1 changed files with 18 additions and 1 deletions
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19
src/renderer_gl.cpp
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@ -344,6 +344,8 @@ namespace bgfx
ATI_meminfo,
CHROMIUM_color_buffer_float_rgb,
CHROMIUM_color_buffer_float_rgba,
CHROMIUM_depth_texture,
CHROMIUM_framebuffer_multisample,
CHROMIUM_texture_compression_dxt3,
@ -356,6 +358,7 @@ namespace bgfx
EXT_compressed_ETC1_RGB8_sub_texture,
EXT_debug_label,
EXT_debug_marker,
EXT_draw_buffers,
EXT_frag_depth,
EXT_framebuffer_blit,
EXT_framebuffer_object,
@ -499,6 +502,8 @@ namespace bgfx
{ "ATI_meminfo", false, true },
{ "CHROMIUM_color_buffer_float_rgb", false, true },
{ "CHROMIUM_color_buffer_float_rgba", false, true },
{ "CHROMIUM_depth_texture", false, true },
{ "CHROMIUM_framebuffer_multisample", false, true },
{ "CHROMIUM_texture_compression_dxt3", false, true },
@ -511,6 +516,7 @@ namespace bgfx
{ "EXT_compressed_ETC1_RGB8_sub_texture", false, true }, // GLES2 extension.
{ "EXT_debug_label", false, true },
{ "EXT_debug_marker", false, true },
{ "EXT_draw_buffers", false, true }, // GLES2 extension.
{ "EXT_frag_depth", false, true }, // GLES2 extension.
{ "EXT_framebuffer_blit", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_framebuffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
@ -1170,7 +1176,8 @@ namespace bgfx
g_caps.maxTextureSize = glGet(GL_MAX_TEXTURE_SIZE);
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
|| BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
|| BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::EXT_draw_buffers].m_supported)
{
g_caps.maxFBAttachments = bx::uint32_min(glGet(GL_MAX_COLOR_ATTACHMENTS), BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS);
}
@ -3422,6 +3429,8 @@ namespace bgfx
&& bx::findIdentifierMatch(code, s_OES_standard_derivatives)
;
bool usesFragData = !!bx::findIdentifierMatch(code, "gl_FragData");
bool usesFragDepth = !!bx::findIdentifierMatch(code, "gl_FragDepth");
bool usesShadowSamplers = !!bx::findIdentifierMatch(code, s_EXT_shadow_samplers);
@ -3439,6 +3448,14 @@ namespace bgfx
writeString(&writer, "#extension GL_OES_standard_derivatives : enable\n");
}
if (usesFragData)
{
BX_WARN(s_extension[Extension::EXT_draw_buffers].m_supported, "EXT_draw_buffers is used but not supported by GLES2 driver.");
writeString(&writer
, "#extension GL_EXT_draw_buffers : enable\n"
);
}
bool insertFragDepth = false;
if (usesFragDepth)
{