Make GL_ARB_draw_buffers mandatory

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

23 files changed, 40 insertions, 2 deletions

diff --git a/src/mesa/drivers/dri/common/utils.c b/src/mesa/drivers/dri/common/utils.c
index 04d334f278..e4d228c575 100644
--- a/src/mesa/drivers/dri/common/utils.c
+++ b/src/mesa/drivers/dri/common/utils.c
@@ -179,6 +179,7 @@ driGetRendererString( char * buffer, const char * hardware_name,
 
 
 
+#define need_GL_ARB_draw_buffers
 #define need_GL_ARB_multisample
 #define need_GL_ARB_texture_compression
 #define need_GL_ARB_transpose_matrix
@@ -202,6 +203,7 @@ driGetRendererString( char * buffer, const char * hardware_name,
 #include "extension_helper.h"
 
 static const struct dri_extension all_mesa_extensions[] = {
+   { "GL_ARB_draw_buffers",          GL_ARB_draw_buffers_functions },
    { "GL_ARB_multisample",           GL_ARB_multisample_functions },
    { "GL_ARB_texture_compression",   GL_ARB_texture_compression_functions },
    { "GL_ARB_transpose_matrix",      GL_ARB_transpose_matrix_functions },
diff --git a/src/mesa/drivers/dri/ffb/ffb_xmesa.c b/src/mesa/drivers/dri/ffb/ffb_xmesa.c
index 679f8561d2..0cdbbd0ace 100644
--- a/src/mesa/drivers/dri/ffb/ffb_xmesa.c
+++ b/src/mesa/drivers/dri/ffb/ffb_xmesa.c
@@ -260,6 +260,8 @@ ffbCreateContext(const __GLcontextModes *mesaVis,
 	ctx->Const.MaxLineWidthAA = 1.0;
 	ctx->Const.LineWidthGranularity = 1.0;
 
+	ctx->Const.MaxDrawBuffers = 1;
+
 	/* Instead of having GCC emit these constants a zillion times
 	 * everywhere in the driver, put them here.
 	 */
diff --git a/src/mesa/drivers/dri/gamma/gamma_context.c b/src/mesa/drivers/dri/gamma/gamma_context.c
index c91bedce3a..b0ac299daa 100644
--- a/src/mesa/drivers/dri/gamma/gamma_context.c
+++ b/src/mesa/drivers/dri/gamma/gamma_context.c
@@ -133,6 +133,8 @@ GLboolean gammaCreateContext( const __GLcontextModes *glVisual,
    ctx->Const.MaxPointSizeAA = 16.0; 
    ctx->Const.PointSizeGranularity = 0.25;
 
+   ctx->Const.MaxDrawBuffers = 1;
+
    gmesa->texHeap = mmInit( 0, gmesa->gammaScreen->textureSize );
 
    make_empty_list(&gmesa->TexObjList);
diff --git a/src/mesa/drivers/dri/i915/i830_context.c b/src/mesa/drivers/dri/i915/i830_context.c
index 09b1ec922f..fdce8af31f 100644
--- a/src/mesa/drivers/dri/i915/i830_context.c
+++ b/src/mesa/drivers/dri/i915/i830_context.c
@@ -97,6 +97,8 @@ i830CreateContext(const __GLcontextModes * mesaVis,
    ctx->Const.MaxTextureRectSize = (1 << 11);
    ctx->Const.MaxTextureUnits = I830_TEX_UNITS;
 
+   ctx->Const.MaxDrawBuffers = 1;
+
    _tnl_init_vertices(ctx, ctx->Const.MaxArrayLockSize + 12,
                       18 * sizeof(GLfloat));
 
diff --git a/src/mesa/drivers/dri/i915/i915_context.c b/src/mesa/drivers/dri/i915/i915_context.c
index 3d6af38057..c224c68b66 100644
--- a/src/mesa/drivers/dri/i915/i915_context.c
+++ b/src/mesa/drivers/dri/i915/i915_context.c
@@ -172,6 +172,8 @@ i915CreateContext(const __GLcontextModes * mesaVis,
 
    ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 
+   ctx->Const.MaxDrawBuffers = 1;
+
    driInitExtensions(ctx, i915_extensions, GL_FALSE);
 
 
diff --git a/src/mesa/drivers/dri/intel/intel_extensions.c b/src/mesa/drivers/dri/intel/intel_extensions.c
index 549b239bd3..27d056a3b7 100644
--- a/src/mesa/drivers/dri/intel/intel_extensions.c
+++ b/src/mesa/drivers/dri/intel/intel_extensions.c
@@ -109,7 +109,6 @@ static const struct dri_extension card_extensions[] = {
 /** i965-only extensions */
 static const struct dri_extension brw_extensions[] = {
    { "GL_ARB_depth_texture",              NULL },
-   { "GL_ARB_draw_buffers",               NULL },
    { "GL_ARB_fragment_program",           NULL },
    { "GL_ARB_fragment_program_shadow",    NULL },
    { "GL_ARB_fragment_shader",            NULL },
diff --git a/src/mesa/drivers/dri/mach64/mach64_context.c b/src/mesa/drivers/dri/mach64/mach64_context.c
index 4edab846b0..9c7f513c6f 100644
--- a/src/mesa/drivers/dri/mach64/mach64_context.c
+++ b/src/mesa/drivers/dri/mach64/mach64_context.c
@@ -190,6 +190,7 @@ GLboolean mach64CreateContext( const __GLcontextModes *glVisual,
    ctx->Const.MaxTextureUnits = 2;
    ctx->Const.MaxTextureImageUnits = 2;
    ctx->Const.MaxTextureCoordUnits = 2;
+   ctx->Const.MaxDrawBuffers = 1;
 
    heap = mach64Screen->IsPCI ? MACH64_CARD_HEAP : MACH64_AGP_HEAP;
 
diff --git a/src/mesa/drivers/dri/mga/mga_xmesa.c b/src/mesa/drivers/dri/mga/mga_xmesa.c
index 41fa9b29ff..2d0f387cdc 100644
--- a/src/mesa/drivers/dri/mga/mga_xmesa.c
+++ b/src/mesa/drivers/dri/mga/mga_xmesa.c
@@ -531,6 +531,8 @@ mgaCreateContext( const __GLcontextModes *mesaVis,
    ctx->Const.MaxLineWidthAA = 10.0;
    ctx->Const.LineWidthGranularity = 1.0;
 
+   ctx->Const.MaxDrawBuffers = 1;
+
    mmesa->texture_depth = driQueryOptioni (&mmesa->optionCache,
 					   "texture_depth");
    if (mmesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_FB)
diff --git a/src/mesa/drivers/dri/r128/r128_context.c b/src/mesa/drivers/dri/r128/r128_context.c
index 4d6031f527..f511a67bad 100644
--- a/src/mesa/drivers/dri/r128/r128_context.c
+++ b/src/mesa/drivers/dri/r128/r128_context.c
@@ -223,6 +223,8 @@ GLboolean r128CreateContext( const __GLcontextModes *glVisual,
    ctx->Const.MaxLineWidthAA = 1.0;
    ctx->Const.LineWidthGranularity = 1.0;
 
+   ctx->Const.MaxDrawBuffers = 1;
+
 #if ENABLE_PERF_BOXES
    rmesa->boxes = driQueryOptionb(&rmesa->optionCache, "performance_boxes");
 #endif
diff --git a/src/mesa/drivers/dri/r200/r200_context.c b/src/mesa/drivers/dri/r200/r200_context.c
index 47ecd4b05a..c06751516e 100644
--- a/src/mesa/drivers/dri/r200/r200_context.c
+++ b/src/mesa/drivers/dri/r200/r200_context.c
@@ -403,6 +403,8 @@ GLboolean r200CreateContext( const __GLcontextModes *glVisual,
    ctx->Const.VertexProgram.MaxNativeParameters = R200_VSF_MAX_PARAM;
    ctx->Const.VertexProgram.MaxNativeAddressRegs = 1;
 
+   ctx->Const.MaxDrawBuffers = 1;
+
    /* Initialize the software rasterizer and helper modules.
     */
    _swrast_CreateContext( ctx );
diff --git a/src/mesa/drivers/dri/r300/r300_context.c b/src/mesa/drivers/dri/r300/r300_context.c
index e74d29e580..4c14c7eefe 100644
--- a/src/mesa/drivers/dri/r300/r300_context.c
+++ b/src/mesa/drivers/dri/r300/r300_context.c
@@ -311,6 +311,8 @@ GLboolean r300CreateContext(const __GLcontextModes * glVisual,
 #endif
 #endif
 
+	ctx->Const.MaxDrawBuffers = 1;
+
 	/* Initialize the software rasterizer and helper modules.
 	 */
 	_swrast_CreateContext(ctx);
diff --git a/src/mesa/drivers/dri/radeon/radeon_context.c b/src/mesa/drivers/dri/radeon/radeon_context.c
index 38066134a9..ea81a3250b 100644
--- a/src/mesa/drivers/dri/radeon/radeon_context.c
+++ b/src/mesa/drivers/dri/radeon/radeon_context.c
@@ -353,6 +353,8 @@ radeonCreateContext( const __GLcontextModes *glVisual,
 
    rmesa->boxes = 0;
 
+   ctx->Const.MaxDrawBuffers = 1;
+
    /* Initialize the software rasterizer and helper modules.
     */
    _swrast_CreateContext( ctx );
diff --git a/src/mesa/drivers/dri/s3v/s3v_context.c b/src/mesa/drivers/dri/s3v/s3v_context.c
index 14502f95ae..0a3bf7258d 100644
--- a/src/mesa/drivers/dri/s3v/s3v_context.c
+++ b/src/mesa/drivers/dri/s3v/s3v_context.c
@@ -108,6 +108,8 @@ GLboolean s3vCreateContext(const __GLcontextModes *glVisual,
 	ctx->Const.MaxLineWidthAA = 1.0;
 	ctx->Const.LineWidthGranularity = 1.0;
 
+	ctx->Const.MaxDrawBuffers = 1;
+
 	vmesa->texHeap = mmInit( 0, vmesa->s3vScreen->textureSize );
 	DEBUG(("vmesa->s3vScreen->textureSize = 0x%x\n",
 		vmesa->s3vScreen->textureSize));
diff --git a/src/mesa/drivers/dri/savage/savage_xmesa.c b/src/mesa/drivers/dri/savage/savage_xmesa.c
index ab21505cbd..c5decb093a 100644
--- a/src/mesa/drivers/dri/savage/savage_xmesa.c
+++ b/src/mesa/drivers/dri/savage/savage_xmesa.c
@@ -344,7 +344,9 @@ savageCreateContext( const __GLcontextModes *mesaVis,
    ctx->Const.MaxLineWidthAA = 3.0;
    ctx->Const.LineWidthGranularity = 1.0;
 #endif
-   
+
+   ctx->Const.MaxDrawBuffers = 1;
+
    /* Dri stuff
     */
    imesa->hHWContext = driContextPriv->hHWContext;
diff --git a/src/mesa/drivers/dri/tdfx/tdfx_context.c b/src/mesa/drivers/dri/tdfx/tdfx_context.c
index aeb267a64a..20046fcb3a 100644
--- a/src/mesa/drivers/dri/tdfx/tdfx_context.c
+++ b/src/mesa/drivers/dri/tdfx/tdfx_context.c
@@ -309,6 +309,8 @@ GLboolean tdfxCreateContext( const __GLcontextModes *mesaVis,
    ctx->Const.MaxLineWidthAA = 1.0;
    ctx->Const.LineWidthGranularity = 1.0;
 
+   ctx->Const.MaxDrawBuffers = 1;
+
    /* Initialize the software rasterizer and helper modules.
     */
    _swrast_CreateContext( ctx );
diff --git a/src/mesa/drivers/dri/trident/trident_context.c b/src/mesa/drivers/dri/trident/trident_context.c
index e134cfcf8e..aefd8a243f 100644
--- a/src/mesa/drivers/dri/trident/trident_context.c
+++ b/src/mesa/drivers/dri/trident/trident_context.c
@@ -128,6 +128,8 @@ tridentCreateContext( const __GLcontextModes *glVisual,
    ctx->Const.MaxPointSizeAA = 16.0; 
    ctx->Const.PointSizeGranularity = 0.25;
 
+   ctx->Const.MaxDrawBuffers = 1;
+
 #if 0
    tmesa->texHeap = mmInit( 0, tmesa->tridentScreen->textureSize );
 
diff --git a/src/mesa/drivers/dri/unichrome/via_context.c b/src/mesa/drivers/dri/unichrome/via_context.c
index cb66c2d89d..6eb19ac079 100644
--- a/src/mesa/drivers/dri/unichrome/via_context.c
+++ b/src/mesa/drivers/dri/unichrome/via_context.c
@@ -573,6 +573,8 @@ viaCreateContext(const __GLcontextModes *visual,
     ctx->Const.MaxPointSizeAA = 1.0;
     ctx->Const.PointSizeGranularity = 1.0;
 
+    ctx->Const.MaxDrawBuffers = 1;
+
     ctx->Driver.GetString = viaGetString;
 
     ctx->DriverCtx = (void *)vmesa;
diff --git a/src/mesa/drivers/glide/fxdd.c b/src/mesa/drivers/glide/fxdd.c
index e93ada2893..338cd37382 100644
--- a/src/mesa/drivers/glide/fxdd.c
+++ b/src/mesa/drivers/glide/fxdd.c
@@ -1773,6 +1773,8 @@ fxDDInitFxMesaContext(fxMesaContext fxMesa)
    ctx->Const.MaxTextureImageUnits = fxMesa->haveTwoTMUs ? 2 : 1;
    ctx->Const.MaxTextureUnits = MAX2(ctx->Const.MaxTextureImageUnits, ctx->Const.MaxTextureCoordUnits);
 
+   ctx->Const.MaxDrawBuffers = 1;
+
    fxMesa->new_state = _NEW_ALL;
    if (!fxMesa->haveHwStencil) {
       /* don't touch stencil if there is none */
diff --git a/src/mesa/drivers/windows/gldirect/dglcontext.c b/src/mesa/drivers/windows/gldirect/dglcontext.c
index 4ad7a76e67..e9c23d1ccb 100644
--- a/src/mesa/drivers/windows/gldirect/dglcontext.c
+++ b/src/mesa/drivers/windows/gldirect/dglcontext.c
@@ -1482,6 +1482,7 @@ SkipPrimaryCreate:
 #else
 	lpCtx->glCtx->Const.MaxTextureSize = 1024;
 #endif
+	lpCtx->glCtx->Const.MaxDrawBuffers = 1;
 
 	// Setup the Display Driver pointers
 	dglSetupDDPointers(lpCtx->glCtx);
diff --git a/src/mesa/drivers/windows/gldirect/dx7/gld_wgl_dx7.c b/src/mesa/drivers/windows/gldirect/dx7/gld_wgl_dx7.c
index 0f8fe33eb1..fa44a952a0 100644
--- a/src/mesa/drivers/windows/gldirect/dx7/gld_wgl_dx7.c
+++ b/src/mesa/drivers/windows/gldirect/dx7/gld_wgl_dx7.c
@@ -1422,6 +1422,8 @@ BOOL gldInitialiseMesa_DX(
 		lpCtx->glCtx->Const.MaxTextureUnits = 1;
 	}
 
+	lpCtx->glCtx->Const.MaxDrawBuffers = 1;
+
 	// max texture size
 //	MaxTextureSize = min(gld->d3dCaps8.MaxTextureHeight, gld->d3dCaps8.MaxTextureWidth);
 	MaxTextureSize = min(gld->d3dCaps.dwMaxTextureHeight, gld->d3dCaps.dwMaxTextureWidth);
diff --git a/src/mesa/drivers/windows/gldirect/dx8/gld_wgl_dx8.c b/src/mesa/drivers/windows/gldirect/dx8/gld_wgl_dx8.c
index 690f68b68f..011d810e97 100644
--- a/src/mesa/drivers/windows/gldirect/dx8/gld_wgl_dx8.c
+++ b/src/mesa/drivers/windows/gldirect/dx8/gld_wgl_dx8.c
@@ -1204,6 +1204,7 @@ BOOL gldInitialiseMesa_DX(
 		MaxTextureSize >>= 1;
 	}
 	lpCtx->glCtx->Const.MaxTextureLevels = (TextureLevels) ? TextureLevels : 8;
+	lpCtx->glCtx->Const.MaxDrawBuffers = 1;
 
 	IDirect3DDevice8_SetRenderState(gld->pDev, D3DRS_LIGHTING, FALSE);
 	IDirect3DDevice8_SetRenderState(gld->pDev, D3DRS_CULLMODE, D3DCULL_NONE);
diff --git a/src/mesa/drivers/windows/gldirect/dx9/gld_wgl_dx9.c b/src/mesa/drivers/windows/gldirect/dx9/gld_wgl_dx9.c
index dc465c5418..a03b865bb4 100644
--- a/src/mesa/drivers/windows/gldirect/dx9/gld_wgl_dx9.c
+++ b/src/mesa/drivers/windows/gldirect/dx9/gld_wgl_dx9.c
@@ -1206,6 +1206,7 @@ BOOL gldInitialiseMesa_DX(
 		MaxTextureSize >>= 1;
 	}
 	lpCtx->glCtx->Const.MaxTextureLevels = (TextureLevels) ? TextureLevels : 8;
+	lpCtx->glCtx->Const.MaxDrawBuffers = 1;
 
 	IDirect3DDevice9_SetRenderState(gld->pDev, D3DRS_LIGHTING, FALSE);
 	IDirect3DDevice9_SetRenderState(gld->pDev, D3DRS_CULLMODE, D3DCULL_NONE);
diff --git a/src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c b/src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c
index b590dc795a..342a742867 100644
--- a/src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c
+++ b/src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c
@@ -1625,6 +1625,7 @@ BOOL gldInitialiseMesa_MesaSW(
 
 	// Added this to force max texture diminsion to 256. KeithH
 	ctx->Const.MaxTextureLevels = 8;
+	ctx->Const.MaxDrawBuffers = 1;
 
 	_mesa_enable_sw_extensions(ctx);
 	_mesa_enable_imaging_extensions(ctx);