diff options
Diffstat (limited to 'src/mesa/drivers/dri/gamma/gamma_tex.c')
| -rw-r--r-- | src/mesa/drivers/dri/gamma/gamma_tex.c | 433 |
1 files changed, 433 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/gamma/gamma_tex.c b/src/mesa/drivers/dri/gamma/gamma_tex.c new file mode 100644 index 00000000000..d4fc93f86b5 --- /dev/null +++ b/src/mesa/drivers/dri/gamma/gamma_tex.c @@ -0,0 +1,433 @@ +/* $XFree86: xc/lib/GL/mesa/src/drv/gamma/gamma_tex.c,v 1.4 2002/11/05 17:46:07 tsi Exp $ */ + +#include <stdlib.h> +#include <stdio.h> + +#include "glheader.h" +#include "mtypes.h" +#include "imports.h" +#include "simple_list.h" +#include "enums.h" +#include "texstore.h" +#include "teximage.h" +#include "texformat.h" +#include "texobj.h" +#include "swrast/swrast.h" + +#include "mm.h" +#include "gamma_context.h" +#include "colormac.h" + + +/* + * Compute the 'S2.4' lod bias factor from the floating point OpenGL bias. + */ +#if 0 +static GLuint gammaComputeLodBias(GLfloat bias) +{ + return bias; +} +#endif + +static void gammaSetTexWrapping(gammaTextureObjectPtr t, + GLenum wraps, GLenum wrapt) +{ + u_int32_t t1 = t->TextureAddressMode; + u_int32_t t2 = t->TextureReadMode; + + t1 &= ~(TAM_SWrap_Mask | TAM_TWrap_Mask); + t2 &= ~(TRM_UWrap_Mask | TRM_VWrap_Mask); + + if (wraps != GL_CLAMP) { + t1 |= TAM_SWrap_Repeat; + t2 |= TRM_UWrap_Repeat; + } + + if (wrapt != GL_CLAMP) { + t1 |= TAM_TWrap_Repeat; + t2 |= TRM_VWrap_Repeat; + } + + t->TextureAddressMode = t1; + t->TextureReadMode = t2; +} + + +static void gammaSetTexFilter(gammaContextPtr gmesa, + gammaTextureObjectPtr t, + GLenum minf, GLenum magf, + GLfloat bias) +{ + u_int32_t t1 = t->TextureAddressMode; + u_int32_t t2 = t->TextureReadMode; + + t2 &= ~(TRM_Mag_Mask | TRM_Min_Mask); + + switch (minf) { + case GL_NEAREST: + t1 &= ~TAM_LODEnable; + t2 &= ~TRM_MipMapEnable; + t2 |= TRM_Min_Nearest; + break; + case GL_LINEAR: + t1 &= ~TAM_LODEnable; + t2 &= ~TRM_MipMapEnable; + t2 |= TRM_Min_Linear; + break; + case GL_NEAREST_MIPMAP_NEAREST: + t2 |= TRM_Min_NearestMMNearest; + break; + case GL_LINEAR_MIPMAP_NEAREST: + t2 |= TRM_Min_LinearMMNearest; + break; + case GL_NEAREST_MIPMAP_LINEAR: + t2 |= TRM_Min_NearestMMLinear; + break; + case GL_LINEAR_MIPMAP_LINEAR: + t2 |= TRM_Min_LinearMMLinear; + break; + default: + break; + } + + switch (magf) { + case GL_NEAREST: + t2 |= TRM_Mag_Nearest; + break; + case GL_LINEAR: + t2 |= TRM_Mag_Linear; + break; + default: + break; + } + + t->TextureAddressMode = t1; + t->TextureReadMode = t2; +} + + +static void gammaSetTexBorderColor(gammaContextPtr gmesa, + gammaTextureObjectPtr t, + GLubyte color[4]) +{ + t->TextureBorderColor = PACK_COLOR_8888(color[0], color[1], color[2], color[3]); +} + + +static void gammaTexParameter( GLcontext *ctx, GLenum target, + struct gl_texture_object *tObj, + GLenum pname, const GLfloat *params ) +{ + gammaContextPtr gmesa = GAMMA_CONTEXT(ctx); + gammaTextureObjectPtr t = (gammaTextureObjectPtr) tObj->DriverData; + if (!t) + return; + + /* Can't do the update now as we don't know whether to flush + * vertices or not. Setting gmesa->new_state means that + * gammaUpdateTextureState() will be called before any triangles are + * rendered. If a statechange has occurred, it will be detected at + * that point, and buffered vertices flushed. + */ + switch (pname) { + case GL_TEXTURE_MIN_FILTER: + case GL_TEXTURE_MAG_FILTER: + { + GLfloat bias = ctx->Texture.Unit[ctx->Texture.CurrentUnit].LodBias; + gammaSetTexFilter( gmesa, t, tObj->MinFilter, tObj->MagFilter, bias ); + } + break; + + case GL_TEXTURE_WRAP_S: + case GL_TEXTURE_WRAP_T: + gammaSetTexWrapping( t, tObj->WrapS, tObj->WrapT ); + break; + + case GL_TEXTURE_BORDER_COLOR: + gammaSetTexBorderColor( gmesa, t, tObj->_BorderChan ); + break; + + case GL_TEXTURE_BASE_LEVEL: + case GL_TEXTURE_MAX_LEVEL: + case GL_TEXTURE_MIN_LOD: + case GL_TEXTURE_MAX_LOD: + /* This isn't the most efficient solution but there doesn't appear to + * be a nice alternative for Radeon. Since there's no LOD clamping, + * we just have to rely on loading the right subset of mipmap levels + * to simulate a clamped LOD. + */ + gammaSwapOutTexObj( gmesa, t ); + break; + + default: + return; + } + + if (t == gmesa->CurrentTexObj[0]) + gmesa->dirty |= GAMMA_UPLOAD_TEX0; + +#if 0 + if (t == gmesa->CurrentTexObj[1]) { + gmesa->dirty |= GAMMA_UPLOAD_TEX1; + } +#endif +} + + +static void gammaTexEnv( GLcontext *ctx, GLenum target, + GLenum pname, const GLfloat *param ) +{ + gammaContextPtr gmesa = GAMMA_CONTEXT( ctx ); + GLuint unit = ctx->Texture.CurrentUnit; + + /* Only one env color. Need a fallback if env colors are different + * and texture setup references env color in both units. + */ + switch (pname) { + case GL_TEXTURE_ENV_COLOR: { + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; + GLfloat *fc = texUnit->EnvColor; + GLuint r, g, b, a, col; + CLAMPED_FLOAT_TO_UBYTE(r, fc[0]); + CLAMPED_FLOAT_TO_UBYTE(g, fc[1]); + CLAMPED_FLOAT_TO_UBYTE(b, fc[2]); + CLAMPED_FLOAT_TO_UBYTE(a, fc[3]); + + col = ((a << 24) | + (r << 16) | + (g << 8) | + (b << 0)); + + break; + } + case GL_TEXTURE_ENV_MODE: + gmesa->TexEnvImageFmt[unit] = 0; /* force recalc of env state */ + break; + + case GL_TEXTURE_LOD_BIAS_EXT: +#if 0 /* ?!?!?! */ + { + struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current; + gammaTextureObjectPtr t = (gammaTextureObjectPtr) tObj->DriverData; + (void) t; + /* XXX Looks like there's something missing here */ + } +#endif + break; + + default: + break; + } +} + +#if 0 +static void gammaTexImage1D( GLcontext *ctx, GLenum target, GLint level, + GLint internalFormat, + GLint width, GLint border, + GLenum format, GLenum type, + const GLvoid *pixels, + const struct gl_pixelstore_attrib *pack, + struct gl_texture_object *texObj, + struct gl_texture_image *texImage ) +{ + gammaTextureObjectPtr t = (gammaTextureObjectPtr) texObj->DriverData; + if (t) { + gammaSwapOutTexObj( GAMMA_CONTEXT(ctx), t ); + } + _mesa_store_teximage1d( ctx, target, level, internalFormat, + width, border, format, type, + pixels, pack, texObj, texImage ); +} +#endif + +#if 0 +static void gammaTexSubImage1D( GLcontext *ctx, + GLenum target, + GLint level, + GLint xoffset, + GLsizei width, + GLenum format, GLenum type, + const GLvoid *pixels, + const struct gl_pixelstore_attrib *pack, + struct gl_texture_object *texObj, + struct gl_texture_image *texImage ) +{ + gammaTextureObjectPtr t = (gammaTextureObjectPtr) texObj->DriverData; + if (t) { + gammaSwapOutTexObj( GAMMA_CONTEXT(ctx), t ); + } + _mesa_store_texsubimage1d(ctx, target, level, xoffset, width, + format, type, pixels, pack, texObj, + texImage); +} +#endif + +static void gammaTexImage2D( GLcontext *ctx, GLenum target, GLint level, + GLint internalFormat, + GLint width, GLint height, GLint border, + GLenum format, GLenum type, const GLvoid *pixels, + const struct gl_pixelstore_attrib *packing, + struct gl_texture_object *texObj, + struct gl_texture_image *texImage ) +{ + gammaTextureObjectPtr t = (gammaTextureObjectPtr) texObj->DriverData; + if (t) { + gammaSwapOutTexObj( GAMMA_CONTEXT(ctx), t ); + } + _mesa_store_teximage2d( ctx, target, level, internalFormat, + width, height, border, format, type, + pixels, packing, texObj, texImage ); +} + +static void gammaTexSubImage2D( GLcontext *ctx, + GLenum target, + GLint level, + GLint xoffset, GLint yoffset, + GLsizei width, GLsizei height, + GLenum format, GLenum type, + const GLvoid *pixels, + const struct gl_pixelstore_attrib *packing, + struct gl_texture_object *texObj, + struct gl_texture_image *texImage ) +{ + gammaTextureObjectPtr t = (gammaTextureObjectPtr) texObj->DriverData; + if (t) { + gammaSwapOutTexObj( GAMMA_CONTEXT(ctx), t ); + } + _mesa_store_texsubimage2d(ctx, target, level, xoffset, yoffset, width, + height, format, type, pixels, packing, texObj, + texImage); +} + +static void gammaBindTexture( GLcontext *ctx, GLenum target, + struct gl_texture_object *tObj ) +{ + gammaContextPtr gmesa = GAMMA_CONTEXT( ctx ); + gammaTextureObjectPtr t = (gammaTextureObjectPtr) tObj->DriverData; + + if (!t) { + GLfloat bias = ctx->Texture.Unit[ctx->Texture.CurrentUnit].LodBias; + t = CALLOC_STRUCT(gamma_texture_object_t); + + /* Initialize non-image-dependent parts of the state: + */ + t->globj = tObj; + + t->TextureAddressMode = TextureAddressModeEnable | TAM_Operation_3D | + TAM_DY_Enable | TAM_LODEnable; + t->TextureReadMode = TextureReadModeEnable | TRM_PrimaryCacheEnable | + TRM_MipMapEnable | TRM_BorderClamp | TRM_Border; + t->TextureColorMode = TextureColorModeEnable; + t->TextureFilterMode = TextureFilterModeEnable; + + if (target == GL_TEXTURE_2D) { + t->TextureAddressMode |= TAM_TexMapType_2D; + t->TextureReadMode |= TRM_TexMapType_2D; + } + else if (target == GL_TEXTURE_1D) { + t->TextureAddressMode |= TAM_TexMapType_1D; + t->TextureReadMode |= TRM_TexMapType_1D; + } + + t->TextureColorMode = TextureColorModeEnable; + + t->TextureFilterMode = TextureFilterModeEnable; + +#ifdef MESA_LITTLE_ENDIAN + t->TextureFormat = (TF_LittleEndian | +#else + t->TextureFormat = (TF_BigEndian | +#endif + TF_ColorOrder_RGB | + TF_OutputFmt_Texel); + + t->dirty_images = ~0; + + tObj->DriverData = t; + make_empty_list( t ); + + gammaSetTexWrapping( t, tObj->WrapS, tObj->WrapT ); + gammaSetTexFilter( gmesa, t, tObj->MinFilter, tObj->MagFilter, bias ); + gammaSetTexBorderColor( gmesa, t, tObj->_BorderChan ); + } +} + +static void gammaDeleteTexture( GLcontext *ctx, struct gl_texture_object *tObj ) +{ + gammaTextureObjectPtr t = (gammaTextureObjectPtr)tObj->DriverData; + + if (t) { + gammaContextPtr gmesa = GAMMA_CONTEXT( ctx ); +#if 0 + if (gmesa) + GAMMA_FIREVERTICES( gmesa ); +#endif + gammaDestroyTexObj( gmesa, t ); + tObj->DriverData = 0; + } + /* Free mipmap images and the texture object itself */ + _mesa_delete_texture_object(ctx, tObj); +} + +static GLboolean gammaIsTextureResident( GLcontext *ctx, + struct gl_texture_object *tObj ) +{ + gammaTextureObjectPtr t = (gammaTextureObjectPtr)tObj->DriverData; + return t && t->MemBlock; +} + +#ifdef UNUSED +/** + * Allocate a new texture object. + * Called via ctx->Driver.NewTextureObject. + * Note: this function will be called during context creation to + * allocate the default texture objects. + * Note: we could use containment here to 'derive' the driver-specific + * texture object from the core mesa gl_texture_object. Not done at this time. + */ +static struct gl_texture_object * +gammaNewTextureObject( GLcontext *ctx, GLuint name, GLenum target ) +{ + struct gl_texture_object *obj; + obj = _mesa_new_texture_object(ctx, name, target); + return obj; +} +#endif + +void gammaInitTextureObjects( GLcontext *ctx ) +{ + struct gl_texture_object *texObj; + GLuint tmp = ctx->Texture.CurrentUnit; + + ctx->Texture.CurrentUnit = 0; + + texObj = ctx->Texture.Unit[0].Current1D; + gammaBindTexture( ctx, GL_TEXTURE_1D, texObj ); + + texObj = ctx->Texture.Unit[0].Current2D; + gammaBindTexture( ctx, GL_TEXTURE_2D, texObj ); + +#if 0 + ctx->Texture.CurrentUnit = 1; + + texObj = ctx->Texture.Unit[1].Current1D; + gammaBindTexture( ctx, GL_TEXTURE_1D, texObj ); + + texObj = ctx->Texture.Unit[1].Current2D; + gammaBindTexture( ctx, GL_TEXTURE_2D, texObj ); +#endif + + ctx->Texture.CurrentUnit = tmp; +} + + +void gammaDDInitTextureFuncs( struct dd_function_table *functions ) +{ + functions->TexEnv = gammaTexEnv; + functions->TexImage2D = gammaTexImage2D; + functions->TexSubImage2D = gammaTexSubImage2D; + functions->BindTexture = gammaBindTexture; + functions->DeleteTexture = gammaDeleteTexture; + functions->TexParameter = gammaTexParameter; + functions->IsTextureResident = gammaIsTextureResident; +} |