diff options
Diffstat (limited to 'src/mesa/drivers/dri/mga/mgaspan.c')
| -rw-r--r-- | src/mesa/drivers/dri/mga/mgaspan.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/mga/mgaspan.c b/src/mesa/drivers/dri/mga/mgaspan.c index 8dc971cfc5..684239865f 100644 --- a/src/mesa/drivers/dri/mga/mgaspan.c +++ b/src/mesa/drivers/dri/mga/mgaspan.c @@ -116,7 +116,7 @@ #undef INIT_MONO_PIXEL #define INIT_MONO_PIXEL(p, color) \ - p = MGAPACKCOLOR565( color[0], color[1], color[2] ) + p = PACK_COLOR_565( color[0], color[1], color[2] ) #define WRITE_RGBA( _x, _y, r, g, b, a ) \ @@ -148,7 +148,7 @@ do { \ #undef INIT_MONO_PIXEL #define INIT_MONO_PIXEL(p, color) \ - p = MGAPACKCOLOR8888( color[0], color[1], color[2], color[3] ) + p = PACK_COLOR_8888( color[3], color[0], color[1], color[2] ) #define WRITE_RGBA(_x, _y, r, g, b, a) \ @@ -233,11 +233,38 @@ do { \ +/* + * This function is called to specify which buffer to read and write + * for software rasterization (swrast) fallbacks. This doesn't necessarily + * correspond to glDrawBuffer() or glReadBuffer() calls. + */ +static void mgaDDSetBuffer(GLcontext *ctx, GLframebuffer *buffer, + GLuint bufferBit) +{ + mgaContextPtr mmesa = MGA_CONTEXT(ctx); + + if (bufferBit == FRONT_LEFT_BIT) + { + mmesa->drawOffset = mmesa->mgaScreen->frontOffset; + mmesa->readOffset = mmesa->mgaScreen->frontOffset; + } + else if (bufferBit == BACK_LEFT_BIT) + { + mmesa->drawOffset = mmesa->mgaScreen->backOffset; + mmesa->readOffset = mmesa->mgaScreen->backOffset; + } + else { + assert(0); + } +} + void mgaDDInitSpanFuncs( GLcontext *ctx ) { mgaContextPtr mmesa = MGA_CONTEXT(ctx); struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx); + swdd->SetBuffer = mgaDDSetBuffer; + switch (mmesa->mgaScreen->cpp) { case 2: swdd->WriteRGBASpan = mgaWriteRGBASpan_565; |