From 20adf45c23dd9ec86a1439ad87c1473395bbb1a7 Mon Sep 17 00:00:00 2001 From: Brian Date: Tue, 31 Jul 2007 17:42:03 -0600 Subject: Redesign pipe_surface in terms of pipe_region. struct pipe_buffer goes away. Added basic region functions to softpipe to allocate/release malloc'd regions. Surface-related code is fairly coherent now. --- src/mesa/pipe/softpipe/sp_surface.c | 236 +++++++++++++++++++++++++++++++++--- 1 file changed, 222 insertions(+), 14 deletions(-) (limited to 'src/mesa/pipe/softpipe/sp_surface.c') diff --git a/src/mesa/pipe/softpipe/sp_surface.c b/src/mesa/pipe/softpipe/sp_surface.c index 16bbacb12b..cf89d28941 100644 --- a/src/mesa/pipe/softpipe/sp_surface.c +++ b/src/mesa/pipe/softpipe/sp_surface.c @@ -28,8 +28,22 @@ #include "sp_context.h" #include "sp_state.h" #include "sp_surface.h" -#include "sp_headers.h" +#include "pipe/p_defines.h" +#include "main/imports.h" + +/** + * Softpipe surface functions. + * Basically, create surface of a particular type, then plug in default + * read/write_quad functions. + * Note that these quad funcs assume the buffer/region is in a linear + * layout with Y=0=bottom. + * If we had swizzled/AOS buffers the read/write functions could be + * simplified a lot.... + */ + + +#if 000 /* OLD... should be recycled... */ static void rgba8_read_quad_f( struct softpipe_surface *gs, GLint x, GLint y, GLfloat (*rgba)[NUM_CHANNELS] ) @@ -98,9 +112,6 @@ static void rgba8_write_quad_f_swz( struct softpipe_surface *gs, } } - - - static void rgba8_read_quad_ub( struct softpipe_surface *gs, GLint x, GLint y, GLubyte (*rgba)[NUM_CHANNELS] ) @@ -118,7 +129,6 @@ static void rgba8_read_quad_ub( struct softpipe_surface *gs, } } - static void rgba8_write_quad_ub( struct softpipe_surface *gs, GLint x, GLint y, GLubyte (*rgba)[NUM_CHANNELS] ) @@ -136,18 +146,216 @@ static void rgba8_write_quad_ub( struct softpipe_surface *gs, } } +#endif + + + +static void +z16_read_quad_z(struct softpipe_surface *sps, + GLint x, GLint y, GLuint zzzz[QUAD_SIZE]) +{ + const GLushort *src + = (GLushort *) sps->surface.region->map + y * sps->surface.region->pitch + x; + + assert(sps->surface.format == PIPE_FORMAT_U_Z16); + + /* converting GLushort to GLuint: */ + zzzz[0] = src[0]; + zzzz[1] = src[1]; + src += sps->surface.region->pitch; + zzzz[2] = src[0]; + zzzz[3] = src[1]; +} + +static void +z16_write_quad_z(struct softpipe_surface *sps, + GLint x, GLint y, const GLuint zzzz[QUAD_SIZE]) +{ + GLushort *dst = (GLushort *) sps->surface.region->map + y * sps->surface.region->pitch + x; + + assert(sps->surface.format == PIPE_FORMAT_U_Z16); + + /* converting GLuint to GLushort: */ + dst[0] = zzzz[0]; + dst[1] = zzzz[1]; + dst += sps->surface.region->pitch; + dst[0] = zzzz[2]; + dst[1] = zzzz[3]; +} + +static void +z32_read_quad_z(struct softpipe_surface *sps, + GLint x, GLint y, GLuint zzzz[QUAD_SIZE]) +{ + const GLuint *src + = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x; + + assert(sps->surface.format == PIPE_FORMAT_U_Z32); + + zzzz[0] = src[0]; + zzzz[1] = src[1]; + src += sps->surface.region->pitch; + zzzz[2] = src[0]; + zzzz[3] = src[1]; +} + +static void +z32_write_quad_z(struct softpipe_surface *sps, + GLint x, GLint y, const GLuint zzzz[QUAD_SIZE]) +{ + GLuint *dst = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x; + + assert(sps->surface.format == PIPE_FORMAT_U_Z32); + + dst[0] = zzzz[0]; + dst[1] = zzzz[1]; + dst += sps->surface.region->pitch; + dst[0] = zzzz[2]; + dst[1] = zzzz[3]; +} + +static void +z24s8_read_quad_z(struct softpipe_surface *sps, + GLint x, GLint y, GLuint zzzz[QUAD_SIZE]) +{ + const GLuint *src + = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x; + + assert(sps->surface.format == PIPE_FORMAT_Z24_S8); + + zzzz[0] = src[0] >> 8; + zzzz[1] = src[1] >> 8; + src += sps->surface.region->pitch; + zzzz[2] = src[0] >> 8; + zzzz[3] = src[1] >> 8; +} + +static void +z24s8_write_quad_z(struct softpipe_surface *sps, + GLint x, GLint y, const GLuint zzzz[QUAD_SIZE]) +{ + GLuint *dst = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x; + + assert(sps->surface.format == PIPE_FORMAT_Z24_S8); + assert(zzzz[0] <= 0xffffff); + + dst[0] = (dst[0] & 0xff) | (zzzz[0] << 8); + dst[1] = (dst[1] & 0xff) | (zzzz[1] << 8); + dst += sps->surface.region->pitch; + dst[0] = (dst[0] & 0xff) | (zzzz[2] << 8); + dst[1] = (dst[1] & 0xff) | (zzzz[3] << 8); +} + +static void +z24s8_read_quad_stencil(struct softpipe_surface *sps, + GLint x, GLint y, GLubyte ssss[QUAD_SIZE]) +{ + const GLuint *src + = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x; + + assert(sps->surface.format == PIPE_FORMAT_Z24_S8); + + ssss[0] = src[0] & 0xff; + ssss[1] = src[1] & 0xff; + src += sps->surface.region->pitch; + ssss[2] = src[0] & 0xff; + ssss[3] = src[1] & 0xff; +} +static void +z24s8_write_quad_stencil(struct softpipe_surface *sps, + GLint x, GLint y, const GLubyte ssss[QUAD_SIZE]) +{ + GLuint *dst = (GLuint *) sps->surface.region->map + y * sps->surface.region->pitch + x; + + assert(sps->surface.format == PIPE_FORMAT_Z24_S8); + dst[0] = (dst[0] & 0xffffff00) | ssss[0]; + dst[1] = (dst[1] & 0xffffff00) | ssss[1]; + dst += sps->surface.region->pitch; + dst[0] = (dst[0] & 0xffffff00) | ssss[2]; + dst[1] = (dst[1] & 0xffffff00) | ssss[3]; +} -struct softpipe_surface_type gs_rgba8 = { - G_SURFACE_RGBA_8888, - rgba8_read_quad_f, - rgba8_read_quad_f_swz, - rgba8_read_quad_ub, - rgba8_write_quad_f, - rgba8_write_quad_f_swz, - rgba8_write_quad_ub, -}; +static void +s8_read_quad_stencil(struct softpipe_surface *sps, + GLint x, GLint y, GLubyte ssss[QUAD_SIZE]) +{ + const GLubyte *src + = sps->surface.region->map + y * sps->surface.region->pitch + x; + + assert(sps->surface.format == PIPE_FORMAT_U_S8); + + ssss[0] = src[0]; + ssss[1] = src[1]; + src += sps->surface.region->pitch; + ssss[2] = src[0]; + ssss[3] = src[1]; +} + +static void +s8_write_quad_stencil(struct softpipe_surface *sps, + GLint x, GLint y, const GLubyte ssss[QUAD_SIZE]) +{ + GLubyte *dst + = sps->surface.region->map + y * sps->surface.region->pitch + x; + assert(sps->surface.format == PIPE_FORMAT_U_S8); + dst[0] = ssss[0]; + dst[1] = ssss[1]; + dst += sps->surface.region->pitch; + dst[0] = ssss[2]; + dst[1] = ssss[3]; +} + + + +static void +init_quad_funcs(struct softpipe_surface *sps) +{ + switch (sps->surface.format) { + case PIPE_FORMAT_U_Z16: + sps->read_quad_z = z16_read_quad_z; + sps->write_quad_z = z16_write_quad_z; + break; + case PIPE_FORMAT_U_Z32: + sps->read_quad_z = z32_read_quad_z; + sps->write_quad_z = z32_write_quad_z; + break; + case PIPE_FORMAT_Z24_S8: + sps->read_quad_z = z24s8_read_quad_z; + sps->write_quad_z = z24s8_write_quad_z; + sps->read_quad_stencil = z24s8_read_quad_stencil; + sps->write_quad_stencil = z24s8_write_quad_stencil; + break; + case PIPE_FORMAT_U_S8: + sps->read_quad_stencil = s8_read_quad_stencil; + sps->write_quad_stencil = s8_write_quad_stencil; + break; + default: + assert(0); + } +} + + +static struct pipe_surface * +sp_surface_alloc(struct pipe_context *pipe, GLenum format) +{ + struct softpipe_surface *sps = CALLOC_STRUCT(softpipe_surface); + if (!sps) + return NULL; + + sps->surface.format = format; + init_quad_funcs(sps); + + return &sps->surface; +} + + +void +sp_init_surface_functions(struct softpipe_context *sp) +{ + sp->pipe.surface_alloc = sp_surface_alloc; +} -- cgit v1.2.3