Via Unichrome/cle266 driver (Erdi Chen)

1 files changed, 410 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/unichrome/via_span.c b/src/mesa/drivers/dri/unichrome/via_span.c
new file mode 100644
index 0000000000..fb5a82a797
--- /dev/null
+++ b/src/mesa/drivers/dri/unichrome/via_span.c
@@ -0,0 +1,410 @@
+/*
+ * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "glheader.h"
+#include "macros.h"
+#include "mtypes.h"
+#include "colormac.h"
+#include "via_context.h"
+#include "via_span.h"
+#include "via_ioctl.h"
+#include "swrast/swrast.h"
+
+#define DBG 0
+#if 0
+#define LOCAL_VARS                                      \
+    viaContextPtr vmesa = VIA_CONTEXT(ctx);             \
+    __DRIdrawablePrivate *dPriv = vmesa->driDrawable;   \
+    viaScreenPrivate *viaScreen = vmesa->viaScreen;     \
+    GLuint pitch = vmesa->drawPitch;                    \
+    GLuint height = dPriv->h;                           \
+    GLushort p;                                         \
+    char *buf = (char *)(vmesa->drawMap +               \
+	dPriv->x * viaScreen->bytesPerPixel +           \
+                         dPriv->y * pitch);             \
+    char *read_buf = (char *)(vmesa->readMap +          \
+        dPriv->x * viaScreen->bytesPerPixel +           \
+                              dPriv->y * pitch);        \
+    (void)read_buf; (void)buf; (void)p
+#endif
+
+#define LOCAL_DEPTH_VARS                                \
+    viaContextPtr vmesa = VIA_CONTEXT(ctx);             \
+    __DRIdrawablePrivate *dPriv = vmesa->driDrawable;   \
+    viaScreenPrivate *viaScreen = vmesa->viaScreen;     \
+    GLuint pitch = viaScreen->backPitch;                \
+    GLuint height = dPriv->h;                           \
+    char *buf = (char *)(vmesa->depth.map +             \
+                         dPriv->x * 2 +                 \
+                         dPriv->y * pitch)
+
+#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()                               \
+    viaContextPtr vmesa = VIA_CONTEXT(ctx);     \
+    LOCK_HARDWARE_QUIESCENT(vmesa);
+
+/*=* [DBG] csmash saam : bitmap option menu can't be drawn in saam *=*/	
+/*#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_CLIPLOOP()                                               \
+    do {                                                            \
+        __DRIdrawablePrivate *dPriv = vmesa->driDrawable;           \
+        int _nc = dPriv->numClipRects;                              \
+	GLuint scrn = vmesa->saam & S_MASK;                         \
+	if(scrn == S1) _nc = 1;                                     \
+        while (_nc--) {                                             \
+	    int minx;                                               \
+	    int miny;                                               \
+	    int maxx;                                               \
+	    int maxy;                                               \
+	    if (!vmesa->saam) {                                     \
+		minx = dPriv->pClipRects[_nc].x1 - dPriv->x;        \
+        	miny = dPriv->pClipRects[_nc].y1 - dPriv->y;        \
+        	maxx = dPriv->pClipRects[_nc].x2 - dPriv->x;        \
+        	maxy = dPriv->pClipRects[_nc].y2 - dPriv->y;        \
+	    }                                                       \
+	    else {                                                  \
+		minx = -10000;                                      \
+        	miny = -10000;                                      \
+        	maxx = 10000;                                       \
+        	maxy = 10000;                                       \
+	    }
+	    
+	    /*else if (scrn == S0) {                                \
+		minx = dPriv->pClipRects[_nc].x1 - dPriv->x;        \
+        	miny = dPriv->pClipRects[_nc].y1 - dPriv->y;        \
+        	maxx = dPriv->pClipRects[_nc].x2 - dPriv->x;        \
+        	maxy = dPriv->pClipRects[_nc].y2 - dPriv->y;        \
+	    }                                                       \
+	    else if (scrn == S1) {                                  \
+		drm_clip_rect_t *b = vmesa->sarea->boxes;           \
+		minx = b->x1;                                       \
+        	miny = b->y1;                                       \
+        	maxx = b->x2;                                       \
+        	maxy = b->y2;                                       \
+	    }                                                       \
+	    else {                                                  \
+		drm_clip_rect_t *b = vmesa->sarea->boxes + vmesa->numClipRects;\
+		minx = b->x1;        \
+        	miny = b->y1;        \
+        	maxx = b->x2;        \
+        	maxy = b->y2;        \
+	    }*/
+
+#define HW_ENDCLIPLOOP()                                            \
+        }                                                           \
+    } while (0)
+
+#define HW_UNLOCK()                             	\
+    UNLOCK_HARDWARE(vmesa);
+
+
+/* 16 bit, 565 rgb color spanline and pixel functions
+ */
+/*=* [DBG] csmash : fix options worng position *=*/
+/*#define LOCAL_VARS                                    \
+    __DRIdrawablePrivate *dPriv = vmesa->driDrawable;   \
+    GLuint pitch = vmesa->drawPitch;                    \
+    GLuint height = dPriv->h;                           \
+    GLushort p;                                         \
+    char *buf = (char *)(vmesa->drawMap +               \
+                         dPriv->x * 2 +                 \
+                         dPriv->y * pitch);             \
+    char *read_buf = (char *)(vmesa->readMap +          \
+                              dPriv->x * 2 +            \
+                              dPriv->y * pitch);        \
+    (void)read_buf; (void)buf; (void)p*/
+    
+#define LOCAL_VARS                                                   	\
+    __DRIdrawablePrivate *dPriv = vmesa->driDrawable;                	\
+    GLuint pitch = vmesa->drawPitch;                                 	\
+    GLuint height = dPriv->h;                                        	\
+    GLushort p;                                                      	\
+    char *buf, *read_buf;                                            	\
+    p = 0;							     	\
+    if (vmesa->glCtx->Color._DrawDestMask & BACK_LEFT_BIT) {	\
+	buf = (char *)(vmesa->drawMap);                              	\
+	read_buf = (char *)(vmesa->readMap);                         	\
+    }                                                                	\
+    else {                                                           	\
+	buf = (char *)(vmesa->drawMap +                              	\
+                         dPriv->x * 2 +                              	\
+                         dPriv->y * pitch);                          	\
+	read_buf = (char *)(vmesa->readMap +                         	\
+                              dPriv->x * 2 +                         	\
+                              dPriv->y * pitch);                     	\
+    }
+
+#define INIT_MONO_PIXEL(p, color)                       \
+    p = PACK_COLOR_565(color[0], color[1], color[2])
+    
+#define WRITE_RGBA(_x, _y, r, g, b, a)                                      \
+    *(GLushort *)(buf + _x * 2 + _y * pitch) = ((((int)r & 0xf8) << 8) |    \
+                                                (((int)g & 0xfc) << 3) |    \
+                                                (((int)b & 0xf8) >> 3))
+
+#define WRITE_PIXEL(_x, _y, p)                      \
+    *(GLushort *)(buf + _x * 2 + _y * pitch) = p
+
+#define READ_RGBA(rgba, _x, _y)                                             \
+    do {                                                                    \
+        GLushort p = *(GLushort *)(read_buf + _x * 2 + _y * pitch);         \
+        rgba[0] = ((p >> 8) & 0xf8) * 255 / 0xf8;                           \
+        rgba[1] = ((p >> 3) & 0xfc) * 255 / 0xfc;                           \
+        rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8;                           \
+        rgba[3] = 255;                                                      \
+    } while (0)
+
+#define TAG(x) via##x##_565
+#include "spantmp.h"
+
+/* 32 bit, 8888 argb color spanline and pixel functions
+ */
+#undef LOCAL_VARS
+#undef LOCAL_DEPTH_VARS
+ 
+/*=* [DBG] csmash : fix options worng position *=*/
+/*#define LOCAL_VARS                                    \
+    viaContextPtr vmesa = VIA_CONTEXT(ctx);		\
+    __DRIdrawablePrivate *dPriv = vmesa->driDrawable;   \
+    GLuint pitch = vmesa->drawPitch;                    \
+    GLuint height = dPriv->h;                           \
+    GLuint p;                                           \
+    char *buf = (char *)(vmesa->drawMap +               \
+                         dPriv->x * 4 +                 \
+                         dPriv->y * pitch);             \
+    char *read_buf = (char *)(vmesa->readMap +          \
+                              dPriv->x * 4 +            \
+                              dPriv->y * pitch);        \
+    (void)read_buf; (void)buf; (void)p*/
+#define LOCAL_VARS                                                   	\
+    viaContextPtr vmesa = VIA_CONTEXT(ctx);				\
+    __DRIdrawablePrivate *dPriv = vmesa->driDrawable;                	\
+    GLuint pitch = vmesa->drawPitch;                                 	\
+    GLuint height = dPriv->h;                                        	\
+    GLuint p;                                                        	\
+    char *buf, *read_buf;                                            	\
+    p = 0;	                                                        \
+    if (vmesa->glCtx->Color._DrawDestMask & BACK_LEFT_BIT) {	\
+	buf = (char *)(vmesa->drawMap);                              	\
+	read_buf = (char *)(vmesa->readMap);                         	\
+    }                                                                	\
+    else {                                                           	\
+	buf = (char *)(vmesa->drawMap +                              	\
+                         dPriv->x * 4 +                              	\
+                         dPriv->y * pitch);                          	\
+	read_buf = (char *)(vmesa->readMap +                         	\
+                              dPriv->x * 4 +                         	\
+                              dPriv->y * pitch);                     	\
+    }
+
+
+#undef INIT_MONO_PIXEL
+#define INIT_MONO_PIXEL(p, color)                       \
+    p = PACK_COLOR_8888(color[3], color[0], color[1], color[2]) 
+    
+#define WRITE_RGBA(_x, _y, r, g, b, a)                                  \
+    *(GLuint *)(buf + _x * 4 + _y * pitch) = ((r << 16) |    		\
+                                              (g << 8) |    		\
+                                              (b << 0) |    		\
+                                              (a << 24));
+                                              
+
+#define WRITE_PIXEL(_x, _y, p)                      \
+    *(GLuint *)(buf + _x * 4 + _y * pitch) = p
+
+#define READ_RGBA(rgba, _x, _y)                                         \
+    do {                                                                \
+        GLuint p = *(GLuint *)(read_buf + _x * 4 + _y * pitch);         \
+        rgba[0] = (p >> 16) & 0xff;                       		\
+        rgba[1] = (p >> 8) & 0xff;                       		\
+        rgba[2] = (p >> 0) & 0xff;                       		\
+        rgba[3] = 255;                                                  \
+    } while (0)
+
+#define TAG(x) via##x##_8888
+#include "spantmp.h"
+/*#include "via_spantmp.h"*/
+
+/* 16 bit depthbuffer functions.
+ */
+/*=* John Sheng [2003.6.16] fix exy press 'i' dirty screen *=*/
+/*#define LOCAL_DEPTH_VARS                                \
+    __DRIdrawablePrivate *dPriv = vmesa->driDrawable;   \
+    GLuint pitch = vmesa->depth.pitch;                  \
+    GLuint height = dPriv->h;                           \
+    char *buf = (char *)(vmesa->depth.map +             \
+                         dPriv->x * 2 +                 \
+                         dPriv->y * pitch)   */
+#define LOCAL_DEPTH_VARS                                \
+    viaContextPtr vmesa = VIA_CONTEXT(ctx);		\
+    __DRIdrawablePrivate *dPriv = vmesa->driDrawable;   \
+    /*viaScreenPrivate *viaScreen = vmesa->viaScreen;*/ \
+    GLuint pitch = vmesa->depth.pitch;                  \
+    GLuint height = dPriv->h;                           \
+    char *buf = (char *)(vmesa->depth.map)   
+
+
+#define WRITE_DEPTH(_x, _y, d)                      \
+    *(GLushort *)(buf + _x * 2 + _y * pitch) = d;
+
+#define READ_DEPTH(d, _x, _y)                       \
+    d = *(GLushort *)(buf + _x * 2 + _y * pitch);
+
+#define TAG(x) via##x##_16
+#include "depthtmp.h"
+
+/* 32 bit depthbuffer functions.
+ */
+#define WRITE_DEPTH(_x, _y, d)                      \
+    *(GLuint *)(buf + _x * 4 + _y * pitch) = d;
+
+#define READ_DEPTH(d, _x, _y)                       \
+    d = *(GLuint *)(buf + _x * 4 + _y * pitch);
+
+#define TAG(x) via##x##_32
+#include "depthtmp.h"
+
+/* 24/8 bit depthbuffer functions.
+ */
+/* 
+#define WRITE_DEPTH(_x, _y, d) {                     		\
+    GLuint tmp = *(GLuint *)(buf + _x * 4 + y * pitch);		\
+    tmp &= 0xff;						\
+    tmp |= (d) & 0xffffff00;					\
+    *(GLuint *)(buf + _x * 4 + _y * pitch) = tmp;		\
+
+#define READ_DEPTH(d, _x, _y)                       		\
+    d = (*(GLuint *)(buf + _x * 4 + _y * pitch) & ~0xff) >> 8; 
+
+#define TAG(x) via##x##_24_8
+#include "depthtmp.h"
+*/
+
+
+void viaSetBuffer(GLcontext *ctx, GLframebuffer *colorBuffer,
+                      GLuint bufferBit)
+{
+    viaContextPtr vmesa = VIA_CONTEXT(ctx);
+#ifdef DEBUG
+    if (VIA_DEBUG) fprintf(stderr, "%s in\n", __FUNCTION__);
+#endif
+    if (bufferBit == FRONT_LEFT_BIT) {
+	vmesa->drawMap = (char *)vmesa->driScreen->pFB;
+        vmesa->readMap = (char *)vmesa->driScreen->pFB;
+	vmesa->drawPitch = vmesa->front.pitch;
+	vmesa->readPitch = vmesa->front.pitch;
+    }
+    else if (bufferBit == BACK_LEFT_BIT) {
+	vmesa->drawMap = vmesa->back.map;
+        vmesa->readMap = vmesa->back.map;
+	vmesa->drawPitch = vmesa->back.pitch;
+	vmesa->readPitch = vmesa->back.pitch;	
+    }
+    else {
+        ASSERT(0);
+    }
+#ifdef DEBUG
+    if (VIA_DEBUG) fprintf(stderr, "%s out\n", __FUNCTION__);
+#endif
+}
+
+
+void viaInitSpanFuncs(GLcontext *ctx)
+{
+    viaContextPtr vmesa = VIA_CONTEXT(ctx);
+    struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
+
+    swdd->SetBuffer = viaSetBuffer;
+#ifdef DEBUG
+    if (VIA_DEBUG) fprintf(stderr, "%s in\n", __FUNCTION__);
+#endif
+    if (vmesa->viaScreen->bitsPerPixel == 0x10) {
+	swdd->WriteRGBASpan = viaWriteRGBASpan_565;
+	swdd->WriteRGBSpan = viaWriteRGBSpan_565;
+	swdd->WriteMonoRGBASpan = viaWriteMonoRGBASpan_565;
+	swdd->WriteRGBAPixels = viaWriteRGBAPixels_565;
+	swdd->WriteMonoRGBAPixels = viaWriteMonoRGBAPixels_565;
+	swdd->ReadRGBASpan = viaReadRGBASpan_565;
+	swdd->ReadRGBAPixels = viaReadRGBAPixels_565;
+    }
+    else if (vmesa->viaScreen->bitsPerPixel == 0x20) {
+	swdd->WriteRGBASpan = viaWriteRGBASpan_8888;
+	swdd->WriteRGBSpan = viaWriteRGBSpan_8888;
+	swdd->WriteMonoRGBASpan = viaWriteMonoRGBASpan_8888;
+	swdd->WriteRGBAPixels = viaWriteRGBAPixels_8888;
+	swdd->WriteMonoRGBAPixels = viaWriteMonoRGBAPixels_8888;
+	swdd->ReadRGBASpan = viaReadRGBASpan_8888;
+	swdd->ReadRGBAPixels = viaReadRGBAPixels_8888;
+    }
+    else 
+	ASSERT(0);
+	
+    if (vmesa->glCtx->Visual.depthBits == 0x10) {
+    	swdd->ReadDepthSpan = viaReadDepthSpan_16;
+	swdd->WriteDepthSpan = viaWriteDepthSpan_16;
+	swdd->ReadDepthPixels = viaReadDepthPixels_16;
+	swdd->WriteDepthPixels = viaWriteDepthPixels_16;
+    }	
+    else if (vmesa->glCtx->Visual.depthBits == 0x20) {
+    	swdd->ReadDepthSpan = viaReadDepthSpan_32;
+	swdd->WriteDepthSpan = viaWriteDepthSpan_32;
+	swdd->ReadDepthPixels = viaReadDepthPixels_32;
+	swdd->WriteDepthPixels = viaWriteDepthPixels_32;
+    }
+    
+    swdd->WriteCI8Span = NULL;
+    swdd->WriteCI32Span = NULL;
+    swdd->WriteMonoCISpan = NULL;
+    swdd->WriteCI32Pixels = NULL;
+    swdd->WriteMonoCIPixels = NULL;
+    swdd->ReadCI32Span = NULL;
+    swdd->ReadCI32Pixels = NULL;	
+#ifdef DEBUG
+    if (VIA_DEBUG) fprintf(stderr, "%s out\n", __FUNCTION__);
+#endif
+}