i965: Add support for non-color render target write data to new FS backend.
[mesa.git] / src / mesa / drivers / dri / unichrome / via_span.c
index 4773f51627d29c587caba0f4f2d1f08a4b00aeaf..fa3cbf7a79e30c0e172eca72c6b149db386d5b86 100644 (file)
  * DEALINGS IN THE SOFTWARE.
  */
 
-#include "glheader.h"
-#include "macros.h"
-#include "mtypes.h"
-#include "colormac.h"
+#include "main/glheader.h"
+#include "main/formats.h"
+#include "main/macros.h"
+#include "main/mtypes.h"
+#include "main/colormac.h"
 #include "via_context.h"
 #include "via_span.h"
 #include "via_ioctl.h"
 
 #define DBG 0
 
-#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 Y_FLIP(_y) (height - _y - 1)
 
 #define HW_LOCK() 
-#define HW_CLIPLOOP()                                                          \
-    do {                                                                       \
-        __DRIdrawablePrivate *dPriv = vmesa->driDrawable;                      \
-        int _nc = dPriv->numClipRects;                                         \
-        while (_nc--) {                                                                \
-               int minx = dPriv->pClipRects[_nc].x1 - dPriv->x;                \
-               int miny = dPriv->pClipRects[_nc].y1 - dPriv->y;                \
-               int maxx = dPriv->pClipRects[_nc].x2 - dPriv->x;                \
-               int maxy = dPriv->pClipRects[_nc].y2 - dPriv->y;        
-
-
-#define HW_ENDCLIPLOOP()                                            \
-        }                                                           \
-    } while (0)
 
 #define HW_UNLOCK()
 
 #undef LOCAL_VARS
 #define LOCAL_VARS                                                     \
-    viaContextPtr vmesa = VIA_CONTEXT(ctx);                            \
-    __DRIdrawablePrivate *dPriv = vmesa->driDrawable;                  \
-    GLuint draw_pitch = vmesa->drawBuffer->pitch;                       \
-    GLuint read_pitch = vmesa->readBuffer->pitch;                       \
+    struct via_renderbuffer *vrb = (struct via_renderbuffer *) rb;     \
+    __DRIdrawable *dPriv = vrb->dPriv;                           \
+    GLuint pitch = vrb->pitch;                                          \
     GLuint height = dPriv->h;                                          \
     GLint p = 0;                                                       \
-    char *buf = (char *)(vmesa->drawBuffer->origMap + vmesa->drawXoff * vmesa->viaScreen->bytesPerPixel); \
-    char *read_buf = (char *)(vmesa->readBuffer->origMap + vmesa->drawXoff * vmesa->viaScreen->bytesPerPixel); \
-    (void) (read_pitch && draw_pitch && buf && read_buf && p);
+    char *buf = (char *)(vrb->origMap);                                        \
+    (void) p;
 
 /* ================================================================
  * Color buffer
@@ -86,8 +56,7 @@
 
 /* 16 bit, RGB565 color spanline and pixel functions
  */
-#define GET_SRC_PTR(_x, _y) (read_buf + _x * 2 + _y * read_pitch)
-#define GET_DST_PTR(_x, _y) (     buf + _x * 2 + _y * draw_pitch)
+#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
 #define SPANTMP_PIXEL_FMT GL_RGB
 #define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5
 
@@ -98,8 +67,7 @@
 
 /* 32 bit, ARGB8888 color spanline and pixel functions
  */
-#define GET_SRC_PTR(_x, _y) (read_buf + _x * 4 + _y * read_pitch)
-#define GET_DST_PTR(_x, _y) (     buf + _x * 4 + _y * draw_pitch)
+#define GET_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 LOCAL_DEPTH_VARS                                \
-    viaContextPtr vmesa = VIA_CONTEXT(ctx);             \
-    __DRIdrawablePrivate *dPriv = vmesa->driDrawable;   \
-    GLuint depth_pitch = vmesa->depth.pitch;                  \
-    GLuint height = dPriv->h;                           \
-    char *buf = (char *)(vmesa->depth.map + (vmesa->drawXoff * vmesa->depth.bpp/8))
+#define LOCAL_DEPTH_VARS                                            \
+    struct via_renderbuffer *vrb = (struct via_renderbuffer *) rb;  \
+    __DRIdrawable *dPriv = vrb->dPriv;                       \
+    GLuint depth_pitch = vrb->pitch;                                \
+    GLuint height = dPriv->h;                                       \
+    char *buf = (char *)(vrb->map)
 
 #define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS 
 
+#define VALUE_TYPE GLushort
 
 #define WRITE_DEPTH(_x, _y, d)                      \
     *(GLushort *)(buf + (_x) * 2 + (_y) * depth_pitch) = d;
 #define READ_DEPTH(d, _x, _y)                       \
     d = *(volatile GLushort *)(buf + (_x) * 2 + (_y) * depth_pitch);
 
-#define TAG(x) via##x##_16
+#define TAG(x) via##x##_z16
 #include "depthtmp.h"
 
 /* 32 bit depthbuffer functions.
  */
+#define VALUE_TYPE GLuint
+
 #define WRITE_DEPTH(_x, _y, d)                      \
     *(GLuint *)(buf + (_x) * 4 + (_y) * depth_pitch) = d;
 
 #define READ_DEPTH(d, _x, _y)                       \
     d = *(volatile GLuint *)(buf + (_x) * 4 + (_y) * depth_pitch);
 
-#define TAG(x) via##x##_32
+#define TAG(x) via##x##_z32
 #include "depthtmp.h"
 
 
 
 /* 24/8 bit interleaved depth/stencil functions
  */
+#define VALUE_TYPE GLuint
+
 #define WRITE_DEPTH( _x, _y, d ) {                     \
    GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*depth_pitch);  \
    tmp &= 0x000000ff;                                  \
    d = (*(GLuint *)(buf + (_x)*4 + (_y)*depth_pitch)) >> 8;
 
 
-#define TAG(x) via##x##_24_8
+#define TAG(x) via##x##_z24_s8
 #include "depthtmp.h"
 
 #define WRITE_STENCIL( _x, _y, d ) {                   \
 #define READ_STENCIL( d, _x, _y )                      \
    d = *(GLuint *)(buf + (_x)*4 + (_y)*depth_pitch) & 0xff;
 
-#define TAG(x) via##x##_24_8
+#define TAG(x) via##x##_z24_s8
 #include "stenciltmp.h"
 
 
 
-static void viaSetBuffer(GLcontext *ctx, GLframebuffer *colorBuffer,
-                      GLuint bufferBit)
-{
-    viaContextPtr vmesa = VIA_CONTEXT(ctx);
-
-    if (bufferBit == DD_FRONT_LEFT_BIT) {
-       vmesa->drawBuffer = vmesa->readBuffer = &vmesa->front;
-    }
-    else if (bufferBit == DD_BACK_LEFT_BIT) {
-       vmesa->drawBuffer = vmesa->readBuffer = &vmesa->back;
-    }
-    else {
-        ASSERT(0);
-    }
-}
 
 /* Move locking out to get reasonable span performance.
  */
 void viaSpanRenderStart( GLcontext *ctx )
 {
-   viaContextPtr vmesa = VIA_CONTEXT(ctx);     
-   VIA_FINISH_PRIM(vmesa);
+   struct via_context *vmesa = VIA_CONTEXT(ctx);     
+   viaWaitIdle(vmesa, GL_FALSE);
    LOCK_HARDWARE(vmesa);
-   viaFlushDmaLocked(vmesa, 0);
-   WAIT_IDLE(vmesa);
 }
 
 void viaSpanRenderFinish( GLcontext *ctx )
 {
-   viaContextPtr vmesa = VIA_CONTEXT(ctx);
+   struct via_context *vmesa = VIA_CONTEXT(ctx);
    _swrast_flush( ctx );
    UNLOCK_HARDWARE( vmesa );
 }
 
 void viaInitSpanFuncs(GLcontext *ctx)
 {
-    viaContextPtr vmesa = VIA_CONTEXT(ctx);
     struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
-
-    swdd->SetBuffer = viaSetBuffer;
-    if (vmesa->viaScreen->bitsPerPixel == 16) {
-       viaInitPointers_565( swdd );
-    }
-    else if (vmesa->viaScreen->bitsPerPixel == 32) {
-       viaInitPointers_8888( swdd );
-    }
-    else {
-       assert(0);
-    }
-       
-    if (vmesa->glCtx->Visual.depthBits == 16) {
-       swdd->ReadDepthSpan = viaReadDepthSpan_16;
-       swdd->WriteDepthSpan = viaWriteDepthSpan_16;
-       swdd->WriteMonoDepthSpan = viaWriteMonoDepthSpan_16;
-       swdd->ReadDepthPixels = viaReadDepthPixels_16;
-       swdd->WriteDepthPixels = viaWriteDepthPixels_16;
-    }  
-    else if (vmesa->glCtx->Visual.depthBits == 24) {
-        swdd->ReadDepthSpan = viaReadDepthSpan_24_8;
-       swdd->WriteDepthSpan = viaWriteDepthSpan_24_8;
-       swdd->WriteMonoDepthSpan = viaWriteMonoDepthSpan_24_8;
-       swdd->ReadDepthPixels = viaReadDepthPixels_24_8;
-       swdd->WriteDepthPixels = viaWriteDepthPixels_24_8;
-
-       swdd->WriteStencilSpan = viaWriteStencilSpan_24_8;
-       swdd->ReadStencilSpan = viaReadStencilSpan_24_8;
-       swdd->WriteStencilPixels = viaWriteStencilPixels_24_8;
-       swdd->ReadStencilPixels = viaReadStencilPixels_24_8;
-    }
-    else if (vmesa->glCtx->Visual.depthBits == 32) {
-       swdd->ReadDepthSpan = viaReadDepthSpan_32;
-       swdd->WriteDepthSpan = viaWriteDepthSpan_32;
-       swdd->WriteMonoDepthSpan = viaWriteMonoDepthSpan_32;
-       swdd->ReadDepthPixels = viaReadDepthPixels_32;
-       swdd->WriteDepthPixels = viaWriteDepthPixels_32;
-    }
-
     swdd->SpanRenderStart = viaSpanRenderStart;
     swdd->SpanRenderFinish = viaSpanRenderFinish; 
+}
+
+
 
-    
-    swdd->WriteCI8Span = NULL;
-    swdd->WriteCI32Span = NULL;
-    swdd->WriteMonoCISpan = NULL;
-    swdd->WriteCI32Pixels = NULL;
-    swdd->WriteMonoCIPixels = NULL;
-    swdd->ReadCI32Span = NULL;
-    swdd->ReadCI32Pixels = NULL;       
+/**
+ * Plug in the Get/Put routines for the given driRenderbuffer.
+ */
+void
+viaSetSpanFunctions(struct via_renderbuffer *vrb, const GLvisual *vis)
+{
+   if (vrb->Base.Format == MESA_FORMAT_RGB565) {
+      viaInitPointers_565(&vrb->Base);
+   }
+   else if (vrb->Base.Format == MESA_FORMAT_ARGB8888) {
+      viaInitPointers_8888(&vrb->Base);
+   }
+   else if (vrb->Base.Format == MESA_FORMAT_Z16) {
+      viaInitDepthPointers_z16(&vrb->Base);
+   }
+   else if (vrb->Base.Format == MESA_FORMAT_Z24_S8) {
+      viaInitDepthPointers_z24_s8(&vrb->Base);
+   }
+   else if (vrb->Base.Format == MESA_FORMAT_Z32) {
+      viaInitDepthPointers_z32(&vrb->Base);
+   }
+   else if (vrb->Base.Format == MESA_FORMAT_S8) {
+      viaInitStencilPointers_z24_s8(&vrb->Base);
+   }
 }