diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/savage/savagespan.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/savage/savagespan.c | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/savage/savagespan.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/savage/savagespan.c new file mode 100644 index 000000000..a261299cc --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/savage/savagespan.c @@ -0,0 +1,343 @@ +/* + * 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 "mtypes.h" +#include "savagedd.h" +#include "savagespan.h" +#include "savageioctl.h" +#include "savage_bci.h" +#include "savage_3d_reg.h" +#include "swrast/swrast.h" + +#define DBG 0 + +#define LOCAL_VARS \ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); \ + __DRIdrawablePrivate *dPriv = imesa->mesa_drawable; \ + savageScreenPrivate *savageScreen = imesa->savageScreen; \ + GLuint cpp = savageScreen->cpp; \ + GLuint pitch = imesa->aperturePitch; \ + GLuint height = dPriv->h; \ + GLubyte *buf = map + \ + dPriv->x * cpp + \ + dPriv->y * pitch; \ + char *read_buf = buf; \ + GLuint p; \ + (void) p + +#define LOCAL_DEPTH_VARS \ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); \ + __DRIdrawablePrivate *dPriv = imesa->mesa_drawable; \ + savageScreenPrivate *savageScreen = imesa->savageScreen; \ + GLuint zpp = savageScreen->zpp; \ + GLuint pitch = imesa->aperturePitch; \ + GLuint height = dPriv->h; \ + GLubyte *buf = imesa->apertureBase[TARGET_DEPTH] + \ + dPriv->x * zpp + \ + dPriv->y * pitch + +#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS + +#define Y_FLIP(_y) (height - _y - 1) + +#define HW_LOCK() + +#define HW_UNLOCK() + +#define HW_WRITE_LOCK() \ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); \ + GLubyte *map = imesa->drawMap; + +#define HW_READ_LOCK() \ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); \ + GLubyte *map = imesa->readMap; + + +/* 16 bit, 565 rgb color spanline and pixel functions + */ +#define SPANTMP_PIXEL_FMT GL_RGB +#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5 + +#define TAG(x) savage##x##_565 +#define TAG2(x,y) savage##x##_565##y +#include "spantmp2.h" + + +/* 32 bit, 8888 ARGB color spanline and pixel functions + */ +#define SPANTMP_PIXEL_FMT GL_BGRA +#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV + +#define TAG(x) savage##x##_8888 +#define TAG2(x,y) savage##x##_8888##y +#include "spantmp2.h" + + +#undef HW_WRITE_LOCK +#define HW_WRITE_LOCK() +#undef HW_READ_LOCK +#define HW_READ_LOCK() + + + +/* 16 bit integer depthbuffer functions + * Depth range is reversed. See also savageCalcViewport. + */ +#define WRITE_DEPTH( _x, _y, d ) \ + *(GLushort *)(buf + ((_x)<<1) + (_y)*pitch) = 0xFFFF - d + +#define READ_DEPTH( d, _x, _y ) \ + d = 0xFFFF - *(GLushort *)(buf + ((_x)<<1) + (_y)*pitch) + +#define TAG(x) savage##x##_16 +#include "depthtmp.h" + + + + +/* 16 bit float depthbuffer functions + */ +#define WRITE_DEPTH( _x, _y, d ) \ + *(GLushort *)(buf + ((_x)<<1) + (_y)*pitch) = \ + savageEncodeFloat16( 1.0 - (GLfloat)d/65535.0 ) + +#define READ_DEPTH( d, _x, _y ) \ + d = 65535 - \ + savageDecodeFloat16( *(GLushort *)(buf + ((_x)<<1) + (_y)*pitch) ) * \ + 65535.0 + +#define TAG(x) savage##x##_16f +#include "depthtmp.h" + + + + +/* 8-bit stencil /24-bit integer depth depthbuffer functions. + * Depth range is reversed. See also savageCalcViewport. + */ +#define WRITE_DEPTH( _x, _y, d ) do { \ + GLuint tmp = *(GLuint *)(buf + ((_x)<<2) + (_y)*pitch); \ + tmp &= 0xFF000000; \ + tmp |= 0x00FFFFFF - d; \ + *(GLuint *)(buf + (_x<<2) + _y*pitch) = tmp; \ +} while(0) + +#define READ_DEPTH( d, _x, _y ) \ + d = 0x00FFFFFF - (*(GLuint *)(buf + ((_x)<<2) + (_y)*pitch) & 0x00FFFFFF) + +#define TAG(x) savage##x##_8_24 +#include "depthtmp.h" + + + + +/* 24 bit float depthbuffer functions + */ +#define WRITE_DEPTH( _x, _y, d ) do { \ + GLuint tmp = *(GLuint *)(buf + ((_x)<<2) + (_y)*pitch); \ + tmp &= 0xFF000000; \ + tmp |= savageEncodeFloat24( 1.0 - (GLfloat)d/16777215.0 ); \ + *(GLuint *)(buf + (_x<<2) + _y*pitch) = tmp; \ +} while(0) + +#define READ_DEPTH( d, _x, _y ) \ + d = 16777215 - savageDecodeFloat24( \ + *(GLuint *)(buf + ((_x)<<2) + (_y)*pitch) & 0x00FFFFFF) \ + * 16777215.0 + +#define TAG(x) savage##x##_8_24f +#include "depthtmp.h" + + +#define WRITE_STENCIL( _x, _y, d ) do { \ + GLuint tmp = *(GLuint *)(buf + ((_x)<<2) + (_y)*pitch); \ + tmp &= 0x00FFFFFF; \ + tmp |= (((GLuint)d)<<24) & 0xFF000000; \ + *(GLuint *)(buf + ((_x)<<2) + (_y)*pitch) = tmp; \ +} while(0) + +#define READ_STENCIL( d, _x, _y ) \ + d = (GLstencil)((*(GLuint *)(buf + ((_x)<<2) + (_y)*pitch) & 0xFF000000) >> 24) + +#define TAG(x) savage##x##_8_24 +#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 savageDDSetBuffer(GLcontext *ctx, GLframebuffer *buffer, + GLuint bufferBit) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + char *map; + + assert((bufferBit == BUFFER_BIT_FRONT_LEFT) || (bufferBit == BUFFER_BIT_BACK_LEFT)); + + map = (bufferBit == BUFFER_BIT_FRONT_LEFT) + ? imesa->apertureBase[TARGET_FRONT] + : imesa->apertureBase[TARGET_BACK]; + + imesa->drawMap = map; + imesa->readMap = map; + + assert( (buffer == imesa->driDrawable->driverPrivate) + || (buffer == imesa->driReadable->driverPrivate) ); + + imesa->mesa_drawable = (buffer == imesa->driDrawable->driverPrivate) + ? imesa->driDrawable : imesa->driReadable; +} + +/* + * Wrappers around _swrast_Copy/Draw/ReadPixels that make sure all + * primitives are flushed and the hardware is idle before accessing + * the frame buffer. + */ +static void +savageCopyPixels( GLcontext *ctx, + GLint srcx, GLint srcy, GLsizei width, GLsizei height, + GLint destx, GLint desty, + GLenum type ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + FLUSH_BATCH(imesa); + WAIT_IDLE_EMPTY(imesa); + _swrast_CopyPixels(ctx, srcx, srcy, width, height, destx, desty, type); +} +static void +savageDrawPixels( GLcontext *ctx, + GLint x, GLint y, + GLsizei width, GLsizei height, + GLenum format, GLenum type, + const struct gl_pixelstore_attrib *packing, + const GLvoid *pixels ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + FLUSH_BATCH(imesa); + WAIT_IDLE_EMPTY(imesa); + _swrast_DrawPixels(ctx, x, y, width, height, format, type, packing, pixels); +} +static void +savageReadPixels( GLcontext *ctx, + GLint x, GLint y, GLsizei width, GLsizei height, + GLenum format, GLenum type, + const struct gl_pixelstore_attrib *packing, + GLvoid *pixels ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + FLUSH_BATCH(imesa); + WAIT_IDLE_EMPTY(imesa); + _swrast_ReadPixels(ctx, x, y, width, height, format, type, packing, pixels); +} + +/* + * Make sure the hardware is idle when span-rendering. + */ +static void savageSpanRenderStart( GLcontext *ctx ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + FLUSH_BATCH(imesa); + WAIT_IDLE_EMPTY(imesa); +} + + +void savageDDInitSpanFuncs( GLcontext *ctx ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx); + + swdd->SetBuffer = savageDDSetBuffer; + swdd->SpanRenderStart = savageSpanRenderStart; + + /* Pixel path fallbacks. + */ + ctx->Driver.Accum = _swrast_Accum; + ctx->Driver.Bitmap = _swrast_Bitmap; + ctx->Driver.CopyPixels = savageCopyPixels; + ctx->Driver.DrawPixels = savageDrawPixels; + ctx->Driver.ReadPixels = savageReadPixels; +} + + + +/** + * Plug in the Get/Put routines for the given driRenderbuffer. + */ +void +savageSetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis, + GLboolean float_depth) +{ + if (drb->Base.InternalFormat == GL_RGBA) { + if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) { + savageInitPointers_565(&drb->Base); + } + else { + savageInitPointers_8888(&drb->Base); + } + } + else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) { + if (float_depth) { + drb->Base.GetRow = savageReadDepthSpan_16f; + drb->Base.GetValues = savageReadDepthPixels_16f; + drb->Base.PutRow = savageWriteDepthSpan_16f; + drb->Base.PutMonoRow = savageWriteMonoDepthSpan_16f; + drb->Base.PutValues = savageWriteDepthPixels_16f; + } + else { + drb->Base.GetRow = savageReadDepthSpan_16; + drb->Base.GetValues = savageReadDepthPixels_16; + drb->Base.PutRow = savageWriteDepthSpan_16; + drb->Base.PutMonoRow = savageWriteMonoDepthSpan_16; + drb->Base.PutValues = savageWriteDepthPixels_16; + } + drb->Base.PutMonoValues = NULL; + } + else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) { + if (float_depth) { + drb->Base.GetRow = savageReadDepthSpan_8_24f; + drb->Base.GetValues = savageReadDepthPixels_8_24f; + drb->Base.PutRow = savageWriteDepthSpan_8_24f; + drb->Base.PutMonoRow = savageWriteMonoDepthSpan_8_24f; + drb->Base.PutValues = savageWriteDepthPixels_8_24f; + } + else { + drb->Base.GetRow = savageReadDepthSpan_8_24; + drb->Base.GetValues = savageReadDepthPixels_8_24; + drb->Base.PutRow = savageWriteDepthSpan_8_24; + drb->Base.PutMonoRow = savageWriteMonoDepthSpan_8_24; + drb->Base.PutValues = savageWriteDepthPixels_8_24; + } + drb->Base.PutMonoValues = NULL; + } + else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) { + drb->Base.GetRow = savageReadStencilSpan_8_24; + drb->Base.GetValues = savageReadStencilPixels_8_24; + drb->Base.PutRow = savageWriteStencilSpan_8_24; + drb->Base.PutMonoRow = savageWriteMonoStencilSpan_8_24; + drb->Base.PutValues = savageWriteStencilPixels_8_24; + drb->Base.PutMonoValues = NULL; + } +} |