From 9bc1c92a0b809c6b60d5e4a2c8909f5f98528919 Mon Sep 17 00:00:00 2001 From: Brian Date: Mon, 30 Jul 2007 21:39:57 -0600 Subject: [PATCH] 32 and z24s8 softpipe buffers --- src/mesa/main/renderbuffer.c | 8 +- src/mesa/pipe/p_defines.h | 28 ++--- src/mesa/pipe/softpipe/sp_z_surface.c | 159 +++++++++++++++++++++++--- src/mesa/pipe/softpipe/sp_z_surface.h | 2 +- 4 files changed, 164 insertions(+), 33 deletions(-) diff --git a/src/mesa/main/renderbuffer.c b/src/mesa/main/renderbuffer.c index a1412ef007c..a900de169e5 100644 --- a/src/mesa/main/renderbuffer.c +++ b/src/mesa/main/renderbuffer.c @@ -51,6 +51,7 @@ #include "pipe/softpipe/sp_z_surface.h" #include "pipe/p_state.h" +#include "pipe/p_defines.h" /* 32-bit color index format. Not a public format. */ @@ -1094,7 +1095,8 @@ _mesa_soft_renderbuffer_storage(GLcontext *ctx, struct gl_renderbuffer *rb, rb->PutValues = put_values_ushort; rb->PutMonoValues = put_mono_values_ushort; rb->DepthBits = 8 * sizeof(GLushort); - rb->surface = (struct pipe_surface *) softpipe_new_z_surface(16); + rb->surface + = (struct pipe_surface *) softpipe_new_z_surface(PIPE_FORMAT_U_Z16); pixelSize = sizeof(GLushort); break; case GL_DEPTH_COMPONENT24: @@ -1117,6 +1119,8 @@ _mesa_soft_renderbuffer_storage(GLcontext *ctx, struct gl_renderbuffer *rb, rb->_ActualFormat = GL_DEPTH_COMPONENT32; rb->DepthBits = 32; } + rb->surface + = (struct pipe_surface *) softpipe_new_z_surface(PIPE_FORMAT_U_Z32); pixelSize = sizeof(GLuint); break; case GL_DEPTH_STENCIL_EXT: @@ -1134,6 +1138,8 @@ _mesa_soft_renderbuffer_storage(GLcontext *ctx, struct gl_renderbuffer *rb, rb->PutMonoValues = put_mono_values_uint; rb->DepthBits = 24; rb->StencilBits = 8; + rb->surface + = (struct pipe_surface *) softpipe_new_z_surface(PIPE_FORMAT_Z24_S8); pixelSize = sizeof(GLuint); break; case GL_COLOR_INDEX8_EXT: diff --git a/src/mesa/pipe/p_defines.h b/src/mesa/pipe/p_defines.h index 1b799f14516..58f01758e32 100644 --- a/src/mesa/pipe/p_defines.h +++ b/src/mesa/pipe/p_defines.h @@ -132,19 +132,21 @@ /** * Texture/surface image formats (preliminary) */ -#define PIPE_FORMAT_U_R8_G8_B8_A8 0 /**< ubyte[4] RGBA */ -#define PIPE_FORMAT_U_A8_R8_G8_B8 1 /**< ubyte[4] ARGB */ -#define PIPE_FORMAT_U_R5_G6_B5 2 /**< 5/6/5 RGB */ -#define PIPE_FORMAT_U_L8 3 /**< ubyte luminance */ -#define PIPE_FORMAT_U_A8 4 /**< ubyte alpha */ -#define PIPE_FORMAT_U_I8 5 /**< ubyte intensity */ -#define PIPE_FORMAT_U_L8_A8 6 /**< ubyte luminance, alpha */ -#define PIPE_FORMAT_U_Z16 7 /**< ushort Z/depth */ -#define PIPE_FORMAT_F_Z32 8 /**< float Z/depth */ -#define PIPE_FORMAT_YCBCR 9 -#define PIPE_FORMAT_YCBCR_REV 10 -#define PIPE_FORMAT_U_S8 11 /**< 8-bit stencil */ -#define PIPE_FORMAT_Z24_S8 12 /**< 24-bit Z + 8-bit stencil */ +#define PIPE_FORMAT_NONE 0 /**< unstructured */ +#define PIPE_FORMAT_U_R8_G8_B8_A8 1 /**< ubyte[4] RGBA */ +#define PIPE_FORMAT_U_A8_R8_G8_B8 2 /**< ubyte[4] ARGB */ +#define PIPE_FORMAT_U_R5_G6_B5 3 /**< 5/6/5 RGB */ +#define PIPE_FORMAT_U_L8 4 /**< ubyte luminance */ +#define PIPE_FORMAT_U_A8 5 /**< ubyte alpha */ +#define PIPE_FORMAT_U_I8 6 /**< ubyte intensity */ +#define PIPE_FORMAT_U_L8_A8 7 /**< ubyte luminance, alpha */ +#define PIPE_FORMAT_YCBCR 8 +#define PIPE_FORMAT_YCBCR_REV 9 +#define PIPE_FORMAT_U_Z16 10 /**< ushort Z/depth */ +#define PIPE_FORMAT_U_Z32 11 /**< uint Z/depth */ +#define PIPE_FORMAT_F_Z32 12 /**< float Z/depth */ +#define PIPE_FORMAT_Z24_S8 13 /**< 24-bit Z + 8-bit stencil */ +#define PIPE_FORMAT_U_S8 14 /**< 8-bit stencil */ /** diff --git a/src/mesa/pipe/softpipe/sp_z_surface.c b/src/mesa/pipe/softpipe/sp_z_surface.c index 662a4a15ee2..744737cb6c1 100644 --- a/src/mesa/pipe/softpipe/sp_z_surface.c +++ b/src/mesa/pipe/softpipe/sp_z_surface.c @@ -36,38 +36,48 @@ #include "main/imports.h" #include "pipe/p_state.h" #include "pipe/p_defines.h" +#include "sp_context.h" #include "sp_surface.h" #include "sp_z_surface.h" static void* -z16_map(struct pipe_buffer *pb, GLuint access_mode) +z_map(struct pipe_buffer *pb, GLuint access_mode) { struct softpipe_surface *sps = (struct softpipe_surface *) pb; sps->surface.ptr = pb->ptr; + sps->surface.stride = sps->surface.width; return pb->ptr; } static void -z16_unmap(struct pipe_buffer *pb) +z_unmap(struct pipe_buffer *pb) { struct softpipe_surface *sps = (struct softpipe_surface *) pb; sps->surface.ptr = NULL; + sps->surface.stride = 0; } static void -z16_resize(struct pipe_surface *ps, GLuint width, GLuint height) +z_resize(struct pipe_surface *ps, GLuint width, GLuint height) { struct softpipe_surface *sps = (struct softpipe_surface *) ps; if (sps->surface.buffer.ptr) free(sps->surface.buffer.ptr); - ps->buffer.ptr = (GLubyte *) malloc(width * height * sizeof(GLushort)); + sps->surface.stride = sps->surface.width; + if (sps->surface.format == PIPE_FORMAT_U_Z16) + sps->surface.cpp = 2; + else if (sps->surface.format == PIPE_FORMAT_U_Z32 || + sps->surface.format == PIPE_FORMAT_Z24_S8) + sps->surface.cpp = 4; + else + assert(0); + + ps->buffer.ptr = (GLubyte *) malloc(width * height * sps->surface.cpp); ps->width = width; ps->height = height; - sps->surface.stride = sps->surface.width; - sps->surface.cpp = 2; } static void @@ -77,10 +87,12 @@ z16_read_quad_z(struct softpipe_surface *sps, const GLushort *src = (GLushort *) sps->surface.ptr + y * sps->surface.stride + x; + assert(sps->surface.format == PIPE_FORMAT_U_Z16); + /* converting GLushort to GLuint: */ zzzz[0] = src[0]; zzzz[1] = src[1]; - zzzz[2] = src[sps->surface.width]; + zzzz[2] = src[sps->surface.width + 0]; zzzz[3] = src[sps->surface.width + 1]; } @@ -90,29 +102,140 @@ z16_write_quad_z(struct softpipe_surface *sps, { GLushort *dst = (GLushort *) sps->surface.ptr + y * sps->surface.stride + x; + assert(sps->surface.format == PIPE_FORMAT_U_Z16); + /* converting GLuint to GLushort: */ dst[0] = zzzz[0]; dst[1] = zzzz[1]; - dst[sps->surface.width] = zzzz[2]; + dst[sps->surface.width + 0] = zzzz[2]; + dst[sps->surface.width + 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.ptr + y * sps->surface.stride + x; + + assert(sps->surface.format == PIPE_FORMAT_U_Z32); + + zzzz[0] = src[0]; + zzzz[1] = src[1]; + zzzz[2] = src[sps->surface.width + 0]; + zzzz[3] = src[sps->surface.width + 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.ptr + y * sps->surface.stride + x; + + assert(sps->surface.format == PIPE_FORMAT_U_Z32); + + dst[0] = zzzz[0]; + dst[1] = zzzz[1]; + dst[sps->surface.width + 0] = zzzz[2]; dst[sps->surface.width + 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.ptr + y * sps->surface.stride + x; + + assert(sps->surface.format == PIPE_FORMAT_Z24_S8); + + zzzz[0] = src[0] >> 8; + zzzz[1] = src[1] >> 8; + zzzz[2] = src[sps->surface.width + 0] >> 8; + zzzz[3] = src[sps->surface.width + 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.ptr + y * sps->surface.stride + 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.width; + 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.ptr + y * sps->surface.stride + x; + + assert(sps->surface.format == PIPE_FORMAT_Z24_S8); + + ssss[0] = src[0] & 0xff; + ssss[1] = src[1] & 0xff; + ssss[2] = src[sps->surface.width + 0] & 0xff; + ssss[3] = src[sps->surface.width + 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.ptr + y * sps->surface.stride + 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.width; + dst[0] = (dst[0] & 0xffffff00) | ssss[2]; + dst[1] = (dst[1] & 0xffffff00) | ssss[3]; +} + + + +/** + * Create a new software-based Z buffer. + * \param format one of the PIPE_FORMAT_z* formats + */ struct softpipe_surface * -softpipe_new_z_surface(GLuint depth) +softpipe_new_z_surface(GLuint format) { struct softpipe_surface *sps = CALLOC_STRUCT(softpipe_surface); if (!sps) return NULL; - /* XXX ignoring depth param for now */ - - sps->surface.format = PIPE_FORMAT_U_Z16; - - sps->surface.resize = z16_resize; - sps->surface.buffer.map = z16_map; - sps->surface.buffer.unmap = z16_unmap; - sps->read_quad_z = z16_read_quad_z; - sps->write_quad_z = z16_write_quad_z; + sps->surface.format = format; + sps->surface.resize = z_resize; + sps->surface.buffer.map = z_map; + sps->surface.buffer.unmap = z_unmap; + + if (format == PIPE_FORMAT_U_Z16) { + sps->read_quad_z = z16_read_quad_z; + sps->write_quad_z = z16_write_quad_z; + } + else if (format == PIPE_FORMAT_U_Z32) { + sps->read_quad_z = z32_read_quad_z; + sps->write_quad_z = z32_write_quad_z; + } + else if (format == 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; + } + else { + assert(0); + } return sps; } diff --git a/src/mesa/pipe/softpipe/sp_z_surface.h b/src/mesa/pipe/softpipe/sp_z_surface.h index 9c3c43ca57b..6a8d89a7c14 100644 --- a/src/mesa/pipe/softpipe/sp_z_surface.h +++ b/src/mesa/pipe/softpipe/sp_z_surface.h @@ -31,7 +31,7 @@ extern struct softpipe_surface * -softpipe_new_z_surface(GLuint depth); +softpipe_new_z_surface(GLuint format); #endif /* SP_Z_SURFACE_H */ -- 2.30.2