| /* |
| * Author: Max Lingua <sunmax@libero.it> |
| */ |
| |
| #include "s3v_context.h" |
| #include "s3v_lock.h" |
| |
| #include "swrast/swrast.h" |
| |
| #define _SPANLOCK 1 |
| #define DBG 0 |
| |
| #define LOCAL_VARS \ |
| s3vContextPtr vmesa = S3V_CONTEXT(ctx); \ |
| __DRIscreenPrivate *sPriv = vmesa->driScreen; \ |
| __DRIdrawablePrivate *dPriv = vmesa->driDrawable; \ |
| driRenderbuffer *drb = (driRenderbuffer *) rb; \ |
| GLuint cpp = drb->cpp; \ |
| GLuint pitch = ( (drb->backBuffer) ? \ |
| ((dPriv->w+31)&~31) * cpp \ |
| : sPriv->fbWidth * cpp); \ |
| GLuint height = dPriv->h; \ |
| char *buf = (char *)(sPriv->pFB + drb->offset \ |
| + (drb->backBuffer ? 0 : dPriv->x * cpp + dPriv->y * pitch));\ |
| GLuint p; \ |
| (void) p |
| |
| /* FIXME! Depth/Stencil read/writes don't work ! */ |
| #define LOCAL_DEPTH_VARS \ |
| __DRIdrawablePrivate *dPriv = vmesa->driDrawable; \ |
| __DRIscreenPrivate *sPriv = vmesa->driScreen; \ |
| driRenderbuffer *drb = (driRenderbuffer *) rb; \ |
| GLuint pitch = drb->pitch; \ |
| GLuint height = dPriv->h; \ |
| char *buf = (char *)(sPriv->pFB + drb->offset); \ |
| (void) pitch |
| |
| #define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS |
| |
| #define Y_FLIP( _y ) (height - _y - 1) |
| |
| #if _SPANLOCK /* OK, we lock */ |
| |
| #define HW_LOCK() \ |
| s3vContextPtr vmesa = S3V_CONTEXT(ctx); \ |
| (void) vmesa; \ |
| DMAFLUSH(); \ |
| S3V_SIMPLE_FLUSH_LOCK(vmesa); |
| #define HW_UNLOCK() S3V_SIMPLE_UNLOCK(vmesa); |
| |
| #else /* plz, don't lock */ |
| |
| #define HW_LOCK() \ |
| s3vContextPtr vmesa = S3V_CONTEXT(ctx); \ |
| (void) vmesa; \ |
| DMAFLUSH(); |
| #define HW_UNLOCK() |
| |
| #endif |
| |
| |
| /* ================================================================ |
| * Color buffer |
| */ |
| |
| /* 16 bit, RGB565 color spanline and pixel functions |
| */ |
| #define INIT_MONO_PIXEL(p, color) \ |
| p = S3VIRGEPACKCOLOR555( color[0], color[1], color[2], color[3] ) |
| |
| #define WRITE_RGBA( _x, _y, r, g, b, a ) \ |
| do { \ |
| *(GLushort *)(buf + _x*2 + _y*pitch) = ((((int)r & 0xf8) << 7) | \ |
| (((int)g & 0xf8) << 2) | \ |
| (((int)b & 0xf8) >> 3)); \ |
| DEBUG(("buf=0x%x drawOffset=0x%x dPriv->x=%i drb->cpp=%i dPriv->y=%i pitch=%i\n", \ |
| sPriv->pFB, vmesa->drawOffset, dPriv->x, drb->cpp, dPriv->y, pitch)); \ |
| DEBUG(("dPriv->w = %i\n", dPriv->w)); \ |
| } while(0) |
| |
| #define WRITE_PIXEL( _x, _y, p ) \ |
| *(GLushort *)(buf + _x*2 + _y*pitch) = p |
| |
| #define READ_RGBA( rgba, _x, _y ) \ |
| do { \ |
| GLushort p = *(GLushort *)(buf + _x*2 + _y*pitch); \ |
| rgba[0] = (p >> 7) & 0xf8; \ |
| rgba[1] = (p >> 2) & 0xf8; \ |
| rgba[2] = (p << 3) & 0xf8; \ |
| rgba[3] = 0xff; /* |
| if ( rgba[0] & 0x08 ) rgba[0] |= 0x07; \ |
| if ( rgba[1] & 0x04 ) rgba[1] |= 0x03; \ |
| if ( rgba[2] & 0x08 ) rgba[2] |= 0x07; */ \ |
| } while (0) |
| |
| #define TAG(x) s3v##x##_RGB555 |
| #include "spantmp.h" |
| |
| |
| /* 32 bit, ARGB8888 color spanline and pixel functions |
| */ |
| |
| #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) = ((b << 0) | \ |
| (g << 8) | \ |
| (r << 16) | \ |
| (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 *)(buf + _x*4 + _y*pitch); \ |
| rgba[0] = (p >> 16) & 0xff; \ |
| rgba[1] = (p >> 8) & 0xff; \ |
| rgba[2] = (p >> 0) & 0xff; \ |
| rgba[3] = (p >> 24) & 0xff; \ |
| } while (0) |
| |
| #define TAG(x) s3v##x##_ARGB8888 |
| #include "spantmp.h" |
| |
| |
| /* 16 bit depthbuffer functions. |
| */ |
| #define VALUE_TYPE GLushort |
| |
| #define WRITE_DEPTH( _x, _y, d ) \ |
| *(GLushort *)(buf + _x*2 + _y*dPriv->w*2) = d |
| |
| #define READ_DEPTH( d, _x, _y ) \ |
| d = *(GLushort *)(buf + _x*2 + _y*dPriv->w*2); |
| |
| #define TAG(x) s3v##x##_z16 |
| #include "depthtmp.h" |
| |
| |
| |
| |
| /* 32 bit depthbuffer functions. |
| */ |
| #if 0 |
| #define VALUE_TYPE GLuint |
| |
| #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) s3v##x##_32 |
| #include "depthtmp.h" |
| #endif |
| |
| |
| /* 24/8 bit interleaved depth/stencil functions |
| */ |
| #if 0 |
| #define VALUE_TYPE GLuint |
| |
| #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 |
| |
| |
| #define TAG(x) s3v##x##_24_8 |
| #include "depthtmp.h" |
| |
| #define WRITE_STENCIL( _x, _y, d ) { \ |
| GLuint tmp = *(GLuint *)(buf + _x*4 + _y*pitch); \ |
| tmp &= 0xffffff00; \ |
| tmp |= d & 0xff; \ |
| *(GLuint *)(buf + _x*4 + _y*pitch) = tmp; \ |
| } |
| |
| #define READ_STENCIL( d, _x, _y ) \ |
| d = *(GLuint *)(buf + _x*4 + _y*pitch) & 0xff |
| |
| #define TAG(x) s3v##x##_24_8 |
| #include "stenciltmp.h" |
| |
| #endif |
| |
| |
| /** |
| * Plug in the Get/Put routines for the given driRenderbuffer. |
| */ |
| void |
| s3vSetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis) |
| { |
| if (drb->Base.InternalFormat == GL_RGBA) { |
| if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) { |
| s3vInitPointers_RGB555(&drb->Base); |
| } |
| else { |
| s3vInitPointers_ARGB8888(&drb->Base); |
| } |
| } |
| else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) { |
| s3vInitDepthPointers_z16(&drb->Base); |
| } |
| else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) { |
| /* not done yet */ |
| } |
| else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) { |
| /* not done yet */ |
| } |
| } |