* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
*/
-/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgaspan.c,v 1.11 2002/10/30 12:51:36 alanh Exp $ */
#include "mtypes.h"
#include "mgadd.h"
#define DBG 0
-
#define LOCAL_VARS \
- __DRIdrawablePrivate *dPriv = mmesa->mesa_drawable; \
- mgaScreenPrivate *mgaScreen = mmesa->mgaScreen; \
+ mgaContextPtr mmesa = MGA_CONTEXT(ctx); \
__DRIscreenPrivate *sPriv = mmesa->driScreen; \
- GLuint pitch = mgaScreen->frontPitch; \
+ driRenderbuffer *drb = (driRenderbuffer *) rb; \
+ const __DRIdrawablePrivate *dPriv = drb->dPriv; \
+ GLuint pitch = drb->pitch; \
GLuint height = dPriv->h; \
- char *read_buf = (char *)(sPriv->pFB + \
- mmesa->readOffset + \
- dPriv->x * mgaScreen->cpp + \
- dPriv->y * pitch); \
char *buf = (char *)(sPriv->pFB + \
- mmesa->drawOffset + \
- dPriv->x * mgaScreen->cpp + \
+ drb->offset + \
+ dPriv->x * drb->cpp + \
dPriv->y * pitch); \
GLuint p; \
- (void) read_buf; (void) buf; (void) p
-
+ (void) buf; (void) p
+
#define LOCAL_DEPTH_VARS \
- __DRIdrawablePrivate *dPriv = mmesa->mesa_drawable; \
- mgaScreenPrivate *mgaScreen = mmesa->mgaScreen; \
+ mgaContextPtr mmesa = MGA_CONTEXT(ctx); \
__DRIscreenPrivate *sPriv = mmesa->driScreen; \
- GLuint pitch = mgaScreen->frontPitch; \
+ driRenderbuffer *drb = (driRenderbuffer *) rb; \
+ const __DRIdrawablePrivate *dPriv = drb->dPriv; \
+ GLuint pitch = drb->pitch; \
GLuint height = dPriv->h; \
char *buf = (char *)(sPriv->pFB + \
- mgaScreen->depthOffset + \
- dPriv->x * mgaScreen->cpp + \
+ drb->offset + \
+ dPriv->x * drb->cpp + \
dPriv->y * pitch)
#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS
-#define CLIPPIXEL(_x,_y) (_x >= minx && _x < maxx && \
- _y >= miny && _y < maxy)
-
-#define CLIPSPAN( _x, _y, _n, _x1, _n1, _i ) \
- if ( _y < miny || _y >= maxy ) { \
- _n1 = 0, _x1 = x; \
- } else { \
- _n1 = _n; \
- _x1 = _x; \
- if ( _x1 < minx ) _i += (minx-_x1), n1 -= (minx-_x1), _x1 = minx; \
- if ( _x1 + _n1 >= maxx ) n1 -= (_x1 + n1 - maxx); \
- }
-
-
-#define HW_LOCK() \
- mgaContextPtr mmesa = MGA_CONTEXT(ctx); \
- FLUSH_BATCH(mmesa); \
- LOCK_HARDWARE_QUIESCENT(mmesa);
-
+#define HW_LOCK()
+/* FIXME could/should we use dPriv->numClipRects like the other drivers? */
#define HW_CLIPLOOP() \
do { \
int _nc = mmesa->numClipRects; \
} \
} while (0)
-#define HW_UNLOCK() \
- UNLOCK_HARDWARE(mmesa);
-
-
-
+#define HW_UNLOCK()
/* 16 bit, RGB565 color spanline and pixel functions
*/
-
-#define GET_SRC_PTR(_x, _y) (read_buf + _x * 2 + _y * pitch)
-#define GET_DST_PTR(_x, _y) ( buf + _x * 2 + _y * pitch)
#define SPANTMP_PIXEL_FMT GL_RGB
#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5
/* 32 bit, ARGB8888 color spanline and pixel functions
*/
-
-#define GET_SRC_PTR(_x, _y) (read_buf + _x * 4 + _y * pitch)
-#define GET_DST_PTR(_x, _y) ( buf + _x * 4 + _y * pitch)
#define SPANTMP_PIXEL_FMT GL_BGRA
#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
/* 16 bit depthbuffer functions.
*/
#define WRITE_DEPTH( _x, _y, d ) \
- *(GLushort *)(buf + _x*2 + _y*pitch) = d;
+ *(GLushort *)(buf + (_x)*2 + (_y)*pitch) = d;
#define READ_DEPTH( d, _x, _y ) \
- d = *(GLushort *)(buf + _x*2 + _y*pitch);
+ d = *(GLushort *)(buf + (_x)*2 + (_y)*pitch);
-#define TAG(x) mga##x##_16
+#define TAG(x) mga##x##_z16
#include "depthtmp.h"
/* 32 bit depthbuffer functions.
*/
#define WRITE_DEPTH( _x, _y, d ) \
- *(GLuint *)(buf + _x*4 + _y*pitch) = d;
+ *(GLuint *)(buf + (_x)*4 + (_y)*pitch) = d;
#define READ_DEPTH( d, _x, _y ) \
- d = *(GLuint *)(buf + _x*4 + _y*pitch);
+ d = *(GLuint *)(buf + (_x)*4 + (_y)*pitch);
-#define TAG(x) mga##x##_32
+#define TAG(x) mga##x##_z32
#include "depthtmp.h"
/* 24/8 bit interleaved depth/stencil functions
*/
#define WRITE_DEPTH( _x, _y, d ) { \
- GLuint tmp = *(GLuint *)(buf + _x*4 + _y*pitch); \
+ GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*pitch); \
tmp &= 0xff; \
tmp |= (d) << 8; \
- *(GLuint *)(buf + _x*4 + _y*pitch) = tmp; \
+ *(GLuint *)(buf + (_x)*4 + (_y)*pitch) = tmp; \
}
#define READ_DEPTH( d, _x, _y ) { \
- d = (*(GLuint *)(buf + _x*4 + _y*pitch) & ~0xff) >> 8; \
+ d = (*(GLuint *)(buf + (_x)*4 + (_y)*pitch) & ~0xff) >> 8; \
}
-#define TAG(x) mga##x##_24_8
+#define TAG(x) mga##x##_z24_s8
#include "depthtmp.h"
#define WRITE_STENCIL( _x, _y, d ) { \
#define READ_STENCIL( d, _x, _y ) \
d = *(GLuint *)(buf + _x*4 + _y*pitch) & 0xff;
-#define TAG(x) mga##x##_24_8
+#define TAG(x) mga##x##_z24_s8
#include "stenciltmp.h"
-
-/*
- * 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)
+static void
+mgaSpanRenderStart( GLcontext *ctx )
{
mgaContextPtr mmesa = MGA_CONTEXT(ctx);
- unsigned int offset;
-
- assert((bufferBit == DD_FRONT_LEFT_BIT) || (bufferBit == DD_BACK_LEFT_BIT));
-
- offset = (bufferBit == DD_FRONT_LEFT_BIT)
- ? mmesa->mgaScreen->frontOffset
- : mmesa->mgaScreen->backOffset;
-
- mmesa->drawOffset = offset;
- mmesa->readOffset = offset;
-
- assert( (buffer == mmesa->driDrawable->driverPrivate)
- || (buffer == mmesa->driReadable->driverPrivate) );
+ FLUSH_BATCH( mmesa );
+ LOCK_HARDWARE_QUIESCENT( mmesa );
+}
- mmesa->mesa_drawable = (buffer == mmesa->driDrawable->driverPrivate)
- ? mmesa->driDrawable : mmesa->driReadable;
+static void
+mgaSpanRenderFinish( GLcontext *ctx )
+{
+ mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+ _swrast_flush( ctx );
+ UNLOCK_HARDWARE( mmesa );
}
/**
*/
void mgaDDInitSpanFuncs( GLcontext *ctx )
{
- mgaContextPtr mmesa = MGA_CONTEXT(ctx);
struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
+ swdd->SpanRenderStart = mgaSpanRenderStart;
+ swdd->SpanRenderFinish = mgaSpanRenderFinish;
+}
+
- swdd->SetBuffer = mgaDDSetBuffer;
-
- switch (mmesa->mgaScreen->cpp) {
- case 2:
- mgaInitPointers_565( swdd );
-
- swdd->ReadDepthSpan = mgaReadDepthSpan_16;
- swdd->WriteDepthSpan = mgaWriteDepthSpan_16;
- swdd->ReadDepthPixels = mgaReadDepthPixels_16;
- swdd->WriteDepthPixels = mgaWriteDepthPixels_16;
- break;
-
- case 4:
- mgaInitPointers_8888( swdd );
-
- if (!mmesa->hw_stencil) {
- swdd->ReadDepthSpan = mgaReadDepthSpan_32;
- swdd->WriteDepthSpan = mgaWriteDepthSpan_32;
- swdd->ReadDepthPixels = mgaReadDepthPixels_32;
- swdd->WriteDepthPixels = mgaWriteDepthPixels_32;
- } else {
- swdd->ReadDepthSpan = mgaReadDepthSpan_24_8;
- swdd->WriteDepthSpan = mgaWriteDepthSpan_24_8;
- swdd->ReadDepthPixels = mgaReadDepthPixels_24_8;
- swdd->WriteDepthPixels = mgaWriteDepthPixels_24_8;
-
- swdd->ReadStencilSpan = mgaReadStencilSpan_24_8;
- swdd->WriteStencilSpan = mgaWriteStencilSpan_24_8;
- swdd->ReadStencilPixels = mgaReadStencilPixels_24_8;
- swdd->WriteStencilPixels = mgaWriteStencilPixels_24_8;
+/**
+ * Plug in the Get/Put routines for the given driRenderbuffer.
+ */
+void
+mgaSetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis)
+{
+ if (drb->Base.InternalFormat == GL_RGBA) {
+ if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) {
+ mgaInitPointers_565(&drb->Base);
+ }
+ else {
+ mgaInitPointers_8888(&drb->Base);
}
- break;
+ }
+ else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) {
+ mgaInitDepthPointers_z16(&drb->Base);
+ }
+ else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) {
+ mgaInitDepthPointers_z24_s8(&drb->Base);
+ }
+ else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT32) {
+ mgaInitDepthPointers_z32(&drb->Base);
+ }
+ else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) {
+ mgaInitStencilPointers_z24_s8(&drb->Base);
}
}
projects / mesa.git / blobdiff