diff options
author | Brian Paul <[email protected]> | 2009-01-23 11:26:30 -0700 |
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committer | Brian Paul <[email protected]> | 2009-01-23 11:26:30 -0700 |
commit | 0791fdff6fe87cf9a29ddf4a716f1881c367c7de (patch) | |
tree | 3df318e0fa6fe4e546aef6054d7eb98239265287 /src/mesa | |
parent | 9cf594d698839678290f058078f0eaf569a13ff8 (diff) |
mesa: update tnl module for GL_EXT_vertex_array_bgra
Add special case for GLubyte/GL_BGRA color arrays in _tnl_import_array()
Diffstat (limited to 'src/mesa')
-rw-r--r-- | src/mesa/tnl/t_draw.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/src/mesa/tnl/t_draw.c b/src/mesa/tnl/t_draw.c index fd647c1f4ab..2ec65d53233 100644 --- a/src/mesa/tnl/t_draw.c +++ b/src/mesa/tnl/t_draw.c @@ -88,6 +88,29 @@ static void free_space(GLcontext *ctx) } while (0) +/** + * Convert array of BGRA/GLubyte[4] values to RGBA/float[4] + * \param ptr input/ubyte array + * \param fptr output/float array + */ +static void +convert_bgra_to_float(const struct gl_client_array *input, + const GLubyte *ptr, GLfloat *fptr, + GLuint count ) +{ + GLuint i; + assert(input->Normalized); + assert(input->Size == 4); + for (i = 0; i < count; i++) { + const GLubyte *in = (GLubyte *) ptr; /* in is in BGRA order */ + *fptr++ = UBYTE_TO_FLOAT(in[2]); /* red */ + *fptr++ = UBYTE_TO_FLOAT(in[1]); /* green */ + *fptr++ = UBYTE_TO_FLOAT(in[0]); /* blue */ + *fptr++ = UBYTE_TO_FLOAT(in[3]); /* alpha */ + ptr += input->StrideB; + } +} + /* Adjust pointer to point at first requested element, convert to * floating point, populate VB->AttribPtr[]. @@ -112,7 +135,13 @@ static void _tnl_import_array( GLcontext *ctx, CONVERT(GLbyte, BYTE_TO_FLOAT); break; case GL_UNSIGNED_BYTE: - CONVERT(GLubyte, UBYTE_TO_FLOAT); + if (input->Format == GL_BGRA) { + /* See GL_EXT_vertex_array_bgra */ + convert_bgra_to_float(input, ptr, fptr, count); + } + else { + CONVERT(GLubyte, UBYTE_TO_FLOAT); + } break; case GL_SHORT: CONVERT(GLshort, SHORT_TO_FLOAT); |