diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/savage/savagetex.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/src/mesa/drivers/dri/savage/savagetex.c b/src/mesa/drivers/dri/savage/savagetex.c index 47d9df13f86..ec04b189620 100644 --- a/src/mesa/drivers/dri/savage/savagetex.c +++ b/src/mesa/drivers/dri/savage/savagetex.c @@ -46,6 +46,11 @@ #include "xmlpool.h" +/* On Savage4 the texure LOD-bias needs an offset of ~ 0.3 to get + * somewhere close to software rendering. + */ +#define SAVAGE4_LOD_OFFSET 10 + /* Size 1, 2 and 4 images are packed into the last subtile. Each image * is repeated to fill a 4x4 pixel area. The figure below shows the * layout of those 4x4 pixel areas in the 8x8 subtile. @@ -101,19 +106,6 @@ SUBTILE_FUNC(8, 8) SUBTILE_FUNC(16, 8) SUBTILE_FUNC(32, 8) /* 4 bytes per pixel, 8 pixels wide */ -/** \brief Table of subtile upload functions - * - * Indexed by the binary logarithm of the width in bytes. - */ -static GLubyte *(*savageSubtileTab[]) (GLubyte *, GLubyte *, GLuint) = { - NULL, - savageUploadSubtile_2x8, - savageUploadSubtile_4x8, - savageUploadSubtile_8x8, - savageUploadSubtile_16x8, - savageUploadSubtile_32x8 -}; - /** \brief Upload a complete tile from src (srcStride) to dest * * \param tileInfo Pointer to tiling information @@ -138,10 +130,16 @@ static void savageUploadTile (const savageTileInfo *tileInfo, GLubyte *src, GLuint srcStride, GLubyte *dest) { GLuint subStride = tileInfo->subWidth * bpp; GLubyte *srcSRow = src, *srcSTile = src; - GLubyte *(*subtileFunc) (GLubyte *, GLubyte *, GLuint) = - savageSubtileTab[(tileInfo->subWidth == 4 ? 2 : 3) + - ((bpp == 1) ? 0 : (bpp == 2) ? 1 : 2)]; + GLubyte *(*subtileFunc) (GLubyte *, GLubyte *, GLuint); GLuint sx, sy; + switch (subStride) { + case 2: subtileFunc = savageUploadSubtile_2x8; break; + case 4: subtileFunc = savageUploadSubtile_4x8; break; + case 8: subtileFunc = savageUploadSubtile_8x8; break; + case 16: subtileFunc = savageUploadSubtile_16x8; break; + case 32: subtileFunc = savageUploadSubtile_32x8; break; + default: assert(0); + } for (sy = 0; sy < hInSub; ++sy) { srcSTile = srcSRow; for (sx = 0; sx < wInSub; ++sx) { @@ -1036,7 +1034,8 @@ static void savageUpdateTex0State_s4( GLcontext *ctx ) if((ctx->Texture.Unit[0].LodBias !=0.0F) || (imesa->regs.s4.texCtrl[0].ni.dBias != 0)) { - int bias = (int)(ctx->Texture.Unit[0].LodBias * 32.0); + int bias = (int)(ctx->Texture.Unit[0].LodBias * 32.0) + + SAVAGE4_LOD_OFFSET; if (bias < -256) bias = -256; else if (bias > 255) @@ -1237,7 +1236,8 @@ static void savageUpdateTex1State_s4( GLcontext *ctx ) if((ctx->Texture.Unit[1].LodBias !=0.0F) || (imesa->regs.s4.texCtrl[1].ni.dBias != 0)) { - int bias = (int)(ctx->Texture.Unit[1].LodBias * 32.0); + int bias = (int)(ctx->Texture.Unit[1].LodBias * 32.0) + + SAVAGE4_LOD_OFFSET; if (bias < -256) bias = -256; else if (bias > 255) |