diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/main/formatquery.c | 109 |
1 files changed, 72 insertions, 37 deletions
diff --git a/src/mesa/main/formatquery.c b/src/mesa/main/formatquery.c index 2037e84e17b..0beb1a7905a 100644 --- a/src/mesa/main/formatquery.c +++ b/src/mesa/main/formatquery.c @@ -29,6 +29,7 @@ #include "fbobject.h" #include "formatquery.h" #include "teximage.h" +#include "texparam.h" static bool _is_renderable(struct gl_context *ctx, GLenum internalformat) @@ -682,56 +683,90 @@ _mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname, break; case GL_INTERNALFORMAT_RED_SIZE: - /* @TODO */ - break; - case GL_INTERNALFORMAT_GREEN_SIZE: - /* @TODO */ - break; - case GL_INTERNALFORMAT_BLUE_SIZE: - /* @TODO */ - break; - case GL_INTERNALFORMAT_ALPHA_SIZE: - /* @TODO */ - break; - case GL_INTERNALFORMAT_DEPTH_SIZE: - /* @TODO */ - break; - case GL_INTERNALFORMAT_STENCIL_SIZE: - /* @TODO */ - break; - case GL_INTERNALFORMAT_SHARED_SIZE: - /* @TODO */ - break; - case GL_INTERNALFORMAT_RED_TYPE: - /* @TODO */ - break; - case GL_INTERNALFORMAT_GREEN_TYPE: - /* @TODO */ - break; - case GL_INTERNALFORMAT_BLUE_TYPE: - /* @TODO */ - break; - case GL_INTERNALFORMAT_ALPHA_TYPE: - /* @TODO */ - break; - case GL_INTERNALFORMAT_DEPTH_TYPE: - /* @TODO */ - break; + case GL_INTERNALFORMAT_STENCIL_TYPE: { + GLint baseformat; + mesa_format texformat; - case GL_INTERNALFORMAT_STENCIL_TYPE: - /* @TODO */ + if (target != GL_RENDERBUFFER) { + if (!_mesa_legal_get_tex_level_parameter_target(ctx, target, true)) + goto end; + + baseformat = _mesa_base_tex_format(ctx, internalformat); + } else { + baseformat = _mesa_base_fbo_format(ctx, internalformat); + } + + /* Let the driver choose the texture format. + * + * Disclaimer: I am considering that drivers use for renderbuffers the + * same format-choice logic as for textures. + */ + texformat = ctx->Driver.ChooseTextureFormat(ctx, target, internalformat, + GL_NONE /*format */, GL_NONE /* type */); + + if (texformat == MESA_FORMAT_NONE || baseformat <= 0) + goto end; + + /* Implementation based on what Mesa does for glGetTexLevelParameteriv + * and glGetRenderbufferParameteriv functions. + */ + if (pname == GL_INTERNALFORMAT_SHARED_SIZE) { + if (_mesa_has_EXT_texture_shared_exponent(ctx) && + target != GL_TEXTURE_BUFFER && + target != GL_RENDERBUFFER && + texformat == MESA_FORMAT_R9G9B9E5_FLOAT) { + buffer[0] = 5; + } + goto end; + } + + if (!_mesa_base_format_has_channel(baseformat, pname)) + goto end; + + switch (pname) { + case GL_INTERNALFORMAT_DEPTH_SIZE: + if (!_mesa_has_ARB_depth_texture(ctx) && + target != GL_RENDERBUFFER && + target != GL_TEXTURE_BUFFER) + goto end; + /* fallthrough */ + case GL_INTERNALFORMAT_RED_SIZE: + case GL_INTERNALFORMAT_GREEN_SIZE: + case GL_INTERNALFORMAT_BLUE_SIZE: + case GL_INTERNALFORMAT_ALPHA_SIZE: + case GL_INTERNALFORMAT_STENCIL_SIZE: + buffer[0] = _mesa_get_format_bits(texformat, pname); + break; + + case GL_INTERNALFORMAT_DEPTH_TYPE: + if (!_mesa_has_ARB_texture_float(ctx)) + goto end; + /* fallthrough */ + case GL_INTERNALFORMAT_RED_TYPE: + case GL_INTERNALFORMAT_GREEN_TYPE: + case GL_INTERNALFORMAT_BLUE_TYPE: + case GL_INTERNALFORMAT_ALPHA_TYPE: + case GL_INTERNALFORMAT_STENCIL_TYPE: + buffer[0] = _mesa_get_format_datatype(texformat); + break; + + default: + break; + + } break; + } case GL_MAX_WIDTH: /* @TODO */ |