radeon: stupid mesa extension fail

[mesa.git] / src / mesa / drivers / dri / radeon / radeon_state.c

diff --git a/src/mesa/drivers/dri/radeon/radeon_state.c b/src/mesa/drivers/dri/radeon/radeon_state.c
index 635fe43ce4b3dfaed69f099a9d421f7607abdf1f..19ff2688e6ed055eb4971878bedc059624be96e2 100644 (file)
--- a/src/mesa/drivers/dri/radeon/radeon_state.c
+++ b/src/mesa/drivers/dri/radeon/radeon_state.c
@@ -528,7 +528,8 @@ static void radeonPolygonOffset( GLcontext *ctx,
                                 GLfloat factor, GLfloat units )
 {
    r100ContextPtr rmesa = R100_CONTEXT(ctx);
-   float_ui32_type constant =  { units * rmesa->radeon.state.depth.scale };
+   const GLfloat depthScale = 1.0F / ctx->DrawBuffer->_DepthMaxF;
+   float_ui32_type constant =  { units * depthScale };
    float_ui32_type factoru = { factor };
 
    RADEON_STATECHANGE( rmesa, zbs );
@@ -1391,6 +1392,7 @@ void radeonUpdateWindow( GLcontext *ctx )
    GLfloat yoffset = dPriv ? (GLfloat) dPriv->y + dPriv->h : 0;
    const GLfloat *v = ctx->Viewport._WindowMap.m;
    const GLboolean render_to_fbo = (ctx->DrawBuffer ? (ctx->DrawBuffer->Name != 0) : 0);
+   const GLfloat depthScale = 1.0F / ctx->DrawBuffer->_DepthMaxF;
    GLfloat y_scale, y_bias;
 
    if (render_to_fbo) {
@@ -1405,8 +1407,8 @@ void radeonUpdateWindow( GLcontext *ctx )
    float_ui32_type tx = { v[MAT_TX] + xoffset + SUBPIXEL_X };
    float_ui32_type sy = { v[MAT_SY] * y_scale };
    float_ui32_type ty = { (v[MAT_TY] * y_scale) + y_bias + SUBPIXEL_Y };
-   float_ui32_type sz = { v[MAT_SZ] * rmesa->radeon.state.depth.scale };
-   float_ui32_type tz = { v[MAT_TZ] * rmesa->radeon.state.depth.scale };
+   float_ui32_type sz = { v[MAT_SZ] * depthScale };
+   float_ui32_type tz = { v[MAT_TZ] * depthScale };
 
    RADEON_STATECHANGE( rmesa, vpt );
 
@@ -1800,15 +1802,24 @@ static void radeonEnable( GLcontext *ctx, GLenum cap, GLboolean state )
       break;
 
    case GL_STENCIL_TEST:
-      if ( rmesa->radeon.state.stencil.hwBuffer ) {
-        RADEON_STATECHANGE( rmesa, ctx );
-        if ( state ) {
-           rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] |=  RADEON_STENCIL_ENABLE;
+      {
+        GLboolean hw_stencil = GL_FALSE;
+        if (ctx->DrawBuffer) {
+           struct radeon_renderbuffer *rrbStencil
+              = radeon_get_renderbuffer(ctx->DrawBuffer, BUFFER_STENCIL);
+           hw_stencil = (rrbStencil && rrbStencil->bo);
+        }
+
+        if (hw_stencil) {
+           RADEON_STATECHANGE( rmesa, ctx );
+           if ( state ) {
+              rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] |=  RADEON_STENCIL_ENABLE;
+           } else {
+              rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] &= ~RADEON_STENCIL_ENABLE;
+           }
         } else {
-           rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] &= ~RADEON_STENCIL_ENABLE;
+           FALLBACK( rmesa, RADEON_FALLBACK_STENCIL, state );
         }
-      } else {
-        FALLBACK( rmesa, RADEON_FALLBACK_STENCIL, state );
       }
       break;