diff options
Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/utilities.cpp')
-rw-r--r-- | src/3rdparty/angle/src/libGLESv2/utilities.cpp | 1218 |
1 files changed, 1218 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/utilities.cpp b/src/3rdparty/angle/src/libGLESv2/utilities.cpp new file mode 100644 index 0000000000..a3eb27d392 --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/utilities.cpp @@ -0,0 +1,1218 @@ +// +// Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +// utilities.cpp: Conversion functions and other utility routines. + +#include "libGLESv2/utilities.h" + +#include <limits> +#include <stdio.h> +#include <windows.h> + +#include "common/debug.h" + +#include "libGLESv2/mathutil.h" +#include "libGLESv2/Context.h" + +namespace gl +{ + +// This is how much data the application expects for a uniform +int UniformExternalComponentCount(GLenum type) +{ + switch (type) + { + case GL_BOOL: + case GL_FLOAT: + case GL_INT: + case GL_SAMPLER_2D: + case GL_SAMPLER_CUBE: + return 1; + case GL_BOOL_VEC2: + case GL_FLOAT_VEC2: + case GL_INT_VEC2: + return 2; + case GL_INT_VEC3: + case GL_FLOAT_VEC3: + case GL_BOOL_VEC3: + return 3; + case GL_BOOL_VEC4: + case GL_FLOAT_VEC4: + case GL_INT_VEC4: + case GL_FLOAT_MAT2: + return 4; + case GL_FLOAT_MAT3: + return 9; + case GL_FLOAT_MAT4: + return 16; + default: + UNREACHABLE(); + } + + return 0; +} + +// This is how much data we actually store for a uniform +int UniformInternalComponentCount(GLenum type) +{ + switch (type) + { + case GL_BOOL: + case GL_INT: + case GL_SAMPLER_2D: + case GL_SAMPLER_CUBE: + return 1; + case GL_BOOL_VEC2: + case GL_INT_VEC2: + return 2; + case GL_INT_VEC3: + case GL_BOOL_VEC3: + return 3; + case GL_FLOAT: + case GL_FLOAT_VEC2: + case GL_FLOAT_VEC3: + case GL_BOOL_VEC4: + case GL_FLOAT_VEC4: + case GL_INT_VEC4: + return 4; + case GL_FLOAT_MAT2: + return 8; + case GL_FLOAT_MAT3: + return 12; + case GL_FLOAT_MAT4: + return 16; + default: + UNREACHABLE(); + } + + return 0; +} + +GLenum UniformComponentType(GLenum type) +{ + switch(type) + { + case GL_BOOL: + case GL_BOOL_VEC2: + case GL_BOOL_VEC3: + case GL_BOOL_VEC4: + return GL_BOOL; + case GL_FLOAT: + case GL_FLOAT_VEC2: + case GL_FLOAT_VEC3: + case GL_FLOAT_VEC4: + case GL_FLOAT_MAT2: + case GL_FLOAT_MAT3: + case GL_FLOAT_MAT4: + return GL_FLOAT; + case GL_INT: + case GL_SAMPLER_2D: + case GL_SAMPLER_CUBE: + case GL_INT_VEC2: + case GL_INT_VEC3: + case GL_INT_VEC4: + return GL_INT; + default: + UNREACHABLE(); + } + + return GL_NONE; +} + +size_t UniformComponentSize(GLenum type) +{ + switch(type) + { + case GL_BOOL: return sizeof(GLint); + case GL_FLOAT: return sizeof(GLfloat); + case GL_INT: return sizeof(GLint); + default: UNREACHABLE(); + } + + return 0; +} + +size_t UniformInternalSize(GLenum type) +{ + return UniformComponentSize(UniformComponentType(type)) * UniformInternalComponentCount(type); +} + +size_t UniformExternalSize(GLenum type) +{ + return UniformComponentSize(UniformComponentType(type)) * UniformExternalComponentCount(type); +} + +int VariableRowCount(GLenum type) +{ + switch (type) + { + case GL_NONE: + return 0; + case GL_BOOL: + case GL_FLOAT: + case GL_INT: + case GL_BOOL_VEC2: + case GL_FLOAT_VEC2: + case GL_INT_VEC2: + case GL_INT_VEC3: + case GL_FLOAT_VEC3: + case GL_BOOL_VEC3: + case GL_BOOL_VEC4: + case GL_FLOAT_VEC4: + case GL_INT_VEC4: + return 1; + case GL_FLOAT_MAT2: + return 2; + case GL_FLOAT_MAT3: + return 3; + case GL_FLOAT_MAT4: + return 4; + default: + UNREACHABLE(); + } + + return 0; +} + +int VariableColumnCount(GLenum type) +{ + switch (type) + { + case GL_NONE: + return 0; + case GL_BOOL: + case GL_FLOAT: + case GL_INT: + return 1; + case GL_BOOL_VEC2: + case GL_FLOAT_VEC2: + case GL_INT_VEC2: + case GL_FLOAT_MAT2: + return 2; + case GL_INT_VEC3: + case GL_FLOAT_VEC3: + case GL_BOOL_VEC3: + case GL_FLOAT_MAT3: + return 3; + case GL_BOOL_VEC4: + case GL_FLOAT_VEC4: + case GL_INT_VEC4: + case GL_FLOAT_MAT4: + return 4; + default: + UNREACHABLE(); + } + + return 0; +} + +int AllocateFirstFreeBits(unsigned int *bits, unsigned int allocationSize, unsigned int bitsSize) +{ + ASSERT(allocationSize <= bitsSize); + + unsigned int mask = std::numeric_limits<unsigned int>::max() >> (std::numeric_limits<unsigned int>::digits - allocationSize); + + for (unsigned int i = 0; i < bitsSize - allocationSize + 1; i++) + { + if ((*bits & mask) == 0) + { + *bits |= mask; + return i; + } + + mask <<= 1; + } + + return -1; +} + +GLsizei ComputePitch(GLsizei width, GLint internalformat, GLint alignment) +{ + ASSERT(alignment > 0 && isPow2(alignment)); + + GLsizei rawPitch = ComputePixelSize(internalformat) * width; + return (rawPitch + alignment - 1) & ~(alignment - 1); +} + +GLsizei ComputeCompressedPitch(GLsizei width, GLenum internalformat) +{ + return ComputeCompressedSize(width, 1, internalformat); +} + +GLsizei ComputeCompressedSize(GLsizei width, GLsizei height, GLenum internalformat) +{ + switch (internalformat) + { + case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: + case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: + return 8 * ((width + 3) / 4) * ((height + 3) / 4); + case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: + case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: + return 16 * ((width + 3) / 4) * ((height + 3) / 4); + default: + return 0; + } +} + +bool IsCompressed(GLenum format) +{ + if(format == GL_COMPRESSED_RGB_S3TC_DXT1_EXT || + format == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT || + format == GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE || + format == GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE) + { + return true; + } + else + { + return false; + } +} + +bool IsDepthTexture(GLenum format) +{ + if (format == GL_DEPTH_COMPONENT || + format == GL_DEPTH_STENCIL_OES || + format == GL_DEPTH_COMPONENT16 || + format == GL_DEPTH_COMPONENT32_OES || + format == GL_DEPTH24_STENCIL8_OES) + { + return true; + } + + return false; +} + +bool IsStencilTexture(GLenum format) +{ + if (format == GL_DEPTH_STENCIL_OES || + format == GL_DEPTH24_STENCIL8_OES) + { + return true; + } + + return false; +} + +// Returns the size, in bytes, of a single texel in an Image +int ComputePixelSize(GLint internalformat) +{ + switch (internalformat) + { + case GL_ALPHA8_EXT: return sizeof(unsigned char); + case GL_LUMINANCE8_EXT: return sizeof(unsigned char); + case GL_ALPHA32F_EXT: return sizeof(float); + case GL_LUMINANCE32F_EXT: return sizeof(float); + case GL_ALPHA16F_EXT: return sizeof(unsigned short); + case GL_LUMINANCE16F_EXT: return sizeof(unsigned short); + case GL_LUMINANCE8_ALPHA8_EXT: return sizeof(unsigned char) * 2; + case GL_LUMINANCE_ALPHA32F_EXT: return sizeof(float) * 2; + case GL_LUMINANCE_ALPHA16F_EXT: return sizeof(unsigned short) * 2; + case GL_RGB8_OES: return sizeof(unsigned char) * 3; + case GL_RGB565: return sizeof(unsigned short); + case GL_RGB32F_EXT: return sizeof(float) * 3; + case GL_RGB16F_EXT: return sizeof(unsigned short) * 3; + case GL_RGBA8_OES: return sizeof(unsigned char) * 4; + case GL_RGBA4: return sizeof(unsigned short); + case GL_RGB5_A1: return sizeof(unsigned short); + case GL_RGBA32F_EXT: return sizeof(float) * 4; + case GL_RGBA16F_EXT: return sizeof(unsigned short) * 4; + case GL_BGRA8_EXT: return sizeof(unsigned char) * 4; + case GL_BGRA4_ANGLEX: return sizeof(unsigned short); + case GL_BGR5_A1_ANGLEX: return sizeof(unsigned short); + default: UNREACHABLE(); + } + + return 0; +} + +bool IsCubemapTextureTarget(GLenum target) +{ + return (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z); +} + +bool IsInternalTextureTarget(GLenum target) +{ + return target == GL_TEXTURE_2D || IsCubemapTextureTarget(target); +} + +GLint ConvertSizedInternalFormat(GLenum format, GLenum type) +{ + switch (format) + { + case GL_ALPHA: + switch (type) + { + case GL_UNSIGNED_BYTE: return GL_ALPHA8_EXT; + case GL_FLOAT: return GL_ALPHA32F_EXT; + case GL_HALF_FLOAT_OES: return GL_ALPHA16F_EXT; + default: UNIMPLEMENTED(); + } + break; + case GL_LUMINANCE: + switch (type) + { + case GL_UNSIGNED_BYTE: return GL_LUMINANCE8_EXT; + case GL_FLOAT: return GL_LUMINANCE32F_EXT; + case GL_HALF_FLOAT_OES: return GL_LUMINANCE16F_EXT; + default: UNIMPLEMENTED(); + } + break; + case GL_LUMINANCE_ALPHA: + switch (type) + { + case GL_UNSIGNED_BYTE: return GL_LUMINANCE8_ALPHA8_EXT; + case GL_FLOAT: return GL_LUMINANCE_ALPHA32F_EXT; + case GL_HALF_FLOAT_OES: return GL_LUMINANCE_ALPHA16F_EXT; + default: UNIMPLEMENTED(); + } + break; + case GL_RGB: + switch (type) + { + case GL_UNSIGNED_BYTE: return GL_RGB8_OES; + case GL_UNSIGNED_SHORT_5_6_5: return GL_RGB565; + case GL_FLOAT: return GL_RGB32F_EXT; + case GL_HALF_FLOAT_OES: return GL_RGB16F_EXT; + default: UNIMPLEMENTED(); + } + break; + case GL_RGBA: + switch (type) + { + case GL_UNSIGNED_BYTE: return GL_RGBA8_OES; + case GL_UNSIGNED_SHORT_4_4_4_4: return GL_RGBA4; + case GL_UNSIGNED_SHORT_5_5_5_1: return GL_RGB5_A1; + case GL_FLOAT: return GL_RGBA32F_EXT; + case GL_HALF_FLOAT_OES: return GL_RGBA16F_EXT; + break; + default: UNIMPLEMENTED(); + } + break; + case GL_BGRA_EXT: + switch (type) + { + case GL_UNSIGNED_BYTE: return GL_BGRA8_EXT; + case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT: return GL_BGRA4_ANGLEX; + case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT: return GL_BGR5_A1_ANGLEX; + default: UNIMPLEMENTED(); + } + break; + case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: + case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: + case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: + case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: + return format; + case GL_DEPTH_COMPONENT: + switch (type) + { + case GL_UNSIGNED_SHORT: return GL_DEPTH_COMPONENT16; + case GL_UNSIGNED_INT: return GL_DEPTH_COMPONENT32_OES; + default: UNIMPLEMENTED(); + } + break; + case GL_DEPTH_STENCIL_OES: + switch (type) + { + case GL_UNSIGNED_INT_24_8_OES: return GL_DEPTH24_STENCIL8_OES; + default: UNIMPLEMENTED(); + } + break; + default: + UNIMPLEMENTED(); + } + + return GL_NONE; +} + +GLenum ExtractFormat(GLenum internalformat) +{ + switch (internalformat) + { + case GL_RGB565: return GL_RGB; + case GL_RGBA4: return GL_RGBA; + case GL_RGB5_A1: return GL_RGBA; + case GL_RGB8_OES: return GL_RGB; + case GL_RGBA8_OES: return GL_RGBA; + case GL_LUMINANCE8_ALPHA8_EXT: return GL_LUMINANCE_ALPHA; + case GL_LUMINANCE8_EXT: return GL_LUMINANCE; + case GL_ALPHA8_EXT: return GL_ALPHA; + case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: return GL_COMPRESSED_RGB_S3TC_DXT1_EXT; + case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: return GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; + case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: return GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE; + case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: return GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE; + case GL_RGBA32F_EXT: return GL_RGBA; + case GL_RGB32F_EXT: return GL_RGB; + case GL_ALPHA32F_EXT: return GL_ALPHA; + case GL_LUMINANCE32F_EXT: return GL_LUMINANCE; + case GL_LUMINANCE_ALPHA32F_EXT: return GL_LUMINANCE_ALPHA; + case GL_RGBA16F_EXT: return GL_RGBA; + case GL_RGB16F_EXT: return GL_RGB; + case GL_ALPHA16F_EXT: return GL_ALPHA; + case GL_LUMINANCE16F_EXT: return GL_LUMINANCE; + case GL_LUMINANCE_ALPHA16F_EXT: return GL_LUMINANCE_ALPHA; + case GL_BGRA8_EXT: return GL_BGRA_EXT; + case GL_DEPTH_COMPONENT16: return GL_DEPTH_COMPONENT; + case GL_DEPTH_COMPONENT32_OES: return GL_DEPTH_COMPONENT; + case GL_DEPTH24_STENCIL8_OES: return GL_DEPTH_STENCIL_OES; + default: return GL_NONE; // Unsupported + } +} + +GLenum ExtractType(GLenum internalformat) +{ + switch (internalformat) + { + case GL_RGB565: return GL_UNSIGNED_SHORT_5_6_5; + case GL_RGBA4: return GL_UNSIGNED_SHORT_4_4_4_4; + case GL_RGB5_A1: return GL_UNSIGNED_SHORT_5_5_5_1; + case GL_RGB8_OES: return GL_UNSIGNED_BYTE; + case GL_RGBA8_OES: return GL_UNSIGNED_BYTE; + case GL_LUMINANCE8_ALPHA8_EXT: return GL_UNSIGNED_BYTE; + case GL_LUMINANCE8_EXT: return GL_UNSIGNED_BYTE; + case GL_ALPHA8_EXT: return GL_UNSIGNED_BYTE; + case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: return GL_UNSIGNED_BYTE; + case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: return GL_UNSIGNED_BYTE; + case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: return GL_UNSIGNED_BYTE; + case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: return GL_UNSIGNED_BYTE; + case GL_RGBA32F_EXT: return GL_FLOAT; + case GL_RGB32F_EXT: return GL_FLOAT; + case GL_ALPHA32F_EXT: return GL_FLOAT; + case GL_LUMINANCE32F_EXT: return GL_FLOAT; + case GL_LUMINANCE_ALPHA32F_EXT: return GL_FLOAT; + case GL_RGBA16F_EXT: return GL_HALF_FLOAT_OES; + case GL_RGB16F_EXT: return GL_HALF_FLOAT_OES; + case GL_ALPHA16F_EXT: return GL_HALF_FLOAT_OES; + case GL_LUMINANCE16F_EXT: return GL_HALF_FLOAT_OES; + case GL_LUMINANCE_ALPHA16F_EXT: return GL_HALF_FLOAT_OES; + case GL_BGRA8_EXT: return GL_UNSIGNED_BYTE; + case GL_DEPTH_COMPONENT16: return GL_UNSIGNED_SHORT; + case GL_DEPTH_COMPONENT32_OES: return GL_UNSIGNED_INT; + case GL_DEPTH24_STENCIL8_OES: return GL_UNSIGNED_INT_24_8_OES; + default: return GL_NONE; // Unsupported + } +} + +bool IsColorRenderable(GLenum internalformat) +{ + switch (internalformat) + { + case GL_RGBA4: + case GL_RGB5_A1: + case GL_RGB565: + case GL_RGB8_OES: + case GL_RGBA8_OES: + return true; + case GL_DEPTH_COMPONENT16: + case GL_STENCIL_INDEX8: + case GL_DEPTH24_STENCIL8_OES: + return false; + default: + UNIMPLEMENTED(); + } + + return false; +} + +bool IsDepthRenderable(GLenum internalformat) +{ + switch (internalformat) + { + case GL_DEPTH_COMPONENT16: + case GL_DEPTH24_STENCIL8_OES: + return true; + case GL_STENCIL_INDEX8: + case GL_RGBA4: + case GL_RGB5_A1: + case GL_RGB565: + case GL_RGB8_OES: + case GL_RGBA8_OES: + return false; + default: + UNIMPLEMENTED(); + } + + return false; +} + +bool IsStencilRenderable(GLenum internalformat) +{ + switch (internalformat) + { + case GL_STENCIL_INDEX8: + case GL_DEPTH24_STENCIL8_OES: + return true; + case GL_RGBA4: + case GL_RGB5_A1: + case GL_RGB565: + case GL_RGB8_OES: + case GL_RGBA8_OES: + case GL_DEPTH_COMPONENT16: + return false; + default: + UNIMPLEMENTED(); + } + + return false; +} + +bool IsFloat32Format(GLint internalformat) +{ + switch (internalformat) + { + case GL_RGBA32F_EXT: + case GL_RGB32F_EXT: + case GL_ALPHA32F_EXT: + case GL_LUMINANCE32F_EXT: + case GL_LUMINANCE_ALPHA32F_EXT: + return true; + default: + return false; + } +} + +bool IsFloat16Format(GLint internalformat) +{ + switch (internalformat) + { + case GL_RGBA16F_EXT: + case GL_RGB16F_EXT: + case GL_ALPHA16F_EXT: + case GL_LUMINANCE16F_EXT: + case GL_LUMINANCE_ALPHA16F_EXT: + return true; + default: + return false; + } +} + +} + +namespace es2dx +{ + +D3DCMPFUNC ConvertComparison(GLenum comparison) +{ + D3DCMPFUNC d3dComp = D3DCMP_ALWAYS; + switch (comparison) + { + case GL_NEVER: d3dComp = D3DCMP_NEVER; break; + case GL_ALWAYS: d3dComp = D3DCMP_ALWAYS; break; + case GL_LESS: d3dComp = D3DCMP_LESS; break; + case GL_LEQUAL: d3dComp = D3DCMP_LESSEQUAL; break; + case GL_EQUAL: d3dComp = D3DCMP_EQUAL; break; + case GL_GREATER: d3dComp = D3DCMP_GREATER; break; + case GL_GEQUAL: d3dComp = D3DCMP_GREATEREQUAL; break; + case GL_NOTEQUAL: d3dComp = D3DCMP_NOTEQUAL; break; + default: UNREACHABLE(); + } + + return d3dComp; +} + +D3DCOLOR ConvertColor(gl::Color color) +{ + return D3DCOLOR_RGBA(gl::unorm<8>(color.red), + gl::unorm<8>(color.green), + gl::unorm<8>(color.blue), + gl::unorm<8>(color.alpha)); +} + +D3DBLEND ConvertBlendFunc(GLenum blend) +{ + D3DBLEND d3dBlend = D3DBLEND_ZERO; + + switch (blend) + { + case GL_ZERO: d3dBlend = D3DBLEND_ZERO; break; + case GL_ONE: d3dBlend = D3DBLEND_ONE; break; + case GL_SRC_COLOR: d3dBlend = D3DBLEND_SRCCOLOR; break; + case GL_ONE_MINUS_SRC_COLOR: d3dBlend = D3DBLEND_INVSRCCOLOR; break; + case GL_DST_COLOR: d3dBlend = D3DBLEND_DESTCOLOR; break; + case GL_ONE_MINUS_DST_COLOR: d3dBlend = D3DBLEND_INVDESTCOLOR; break; + case GL_SRC_ALPHA: d3dBlend = D3DBLEND_SRCALPHA; break; + case GL_ONE_MINUS_SRC_ALPHA: d3dBlend = D3DBLEND_INVSRCALPHA; break; + case GL_DST_ALPHA: d3dBlend = D3DBLEND_DESTALPHA; break; + case GL_ONE_MINUS_DST_ALPHA: d3dBlend = D3DBLEND_INVDESTALPHA; break; + case GL_CONSTANT_COLOR: d3dBlend = D3DBLEND_BLENDFACTOR; break; + case GL_ONE_MINUS_CONSTANT_COLOR: d3dBlend = D3DBLEND_INVBLENDFACTOR; break; + case GL_CONSTANT_ALPHA: d3dBlend = D3DBLEND_BLENDFACTOR; break; + case GL_ONE_MINUS_CONSTANT_ALPHA: d3dBlend = D3DBLEND_INVBLENDFACTOR; break; + case GL_SRC_ALPHA_SATURATE: d3dBlend = D3DBLEND_SRCALPHASAT; break; + default: UNREACHABLE(); + } + + return d3dBlend; +} + +D3DBLENDOP ConvertBlendOp(GLenum blendOp) +{ + D3DBLENDOP d3dBlendOp = D3DBLENDOP_ADD; + + switch (blendOp) + { + case GL_FUNC_ADD: d3dBlendOp = D3DBLENDOP_ADD; break; + case GL_FUNC_SUBTRACT: d3dBlendOp = D3DBLENDOP_SUBTRACT; break; + case GL_FUNC_REVERSE_SUBTRACT: d3dBlendOp = D3DBLENDOP_REVSUBTRACT; break; + default: UNREACHABLE(); + } + + return d3dBlendOp; +} + +D3DSTENCILOP ConvertStencilOp(GLenum stencilOp) +{ + D3DSTENCILOP d3dStencilOp = D3DSTENCILOP_KEEP; + + switch (stencilOp) + { + case GL_ZERO: d3dStencilOp = D3DSTENCILOP_ZERO; break; + case GL_KEEP: d3dStencilOp = D3DSTENCILOP_KEEP; break; + case GL_REPLACE: d3dStencilOp = D3DSTENCILOP_REPLACE; break; + case GL_INCR: d3dStencilOp = D3DSTENCILOP_INCRSAT; break; + case GL_DECR: d3dStencilOp = D3DSTENCILOP_DECRSAT; break; + case GL_INVERT: d3dStencilOp = D3DSTENCILOP_INVERT; break; + case GL_INCR_WRAP: d3dStencilOp = D3DSTENCILOP_INCR; break; + case GL_DECR_WRAP: d3dStencilOp = D3DSTENCILOP_DECR; break; + default: UNREACHABLE(); + } + + return d3dStencilOp; +} + +D3DTEXTUREADDRESS ConvertTextureWrap(GLenum wrap) +{ + D3DTEXTUREADDRESS d3dWrap = D3DTADDRESS_WRAP; + + switch (wrap) + { + case GL_REPEAT: d3dWrap = D3DTADDRESS_WRAP; break; + case GL_CLAMP_TO_EDGE: d3dWrap = D3DTADDRESS_CLAMP; break; + case GL_MIRRORED_REPEAT: d3dWrap = D3DTADDRESS_MIRROR; break; + default: UNREACHABLE(); + } + + return d3dWrap; +} + +D3DCULL ConvertCullMode(GLenum cullFace, GLenum frontFace) +{ + D3DCULL cull = D3DCULL_CCW; + switch (cullFace) + { + case GL_FRONT: + cull = (frontFace == GL_CCW ? D3DCULL_CW : D3DCULL_CCW); + break; + case GL_BACK: + cull = (frontFace == GL_CCW ? D3DCULL_CCW : D3DCULL_CW); + break; + case GL_FRONT_AND_BACK: + cull = D3DCULL_NONE; // culling will be handled during draw + break; + default: UNREACHABLE(); + } + + return cull; +} + +D3DCUBEMAP_FACES ConvertCubeFace(GLenum cubeFace) +{ + D3DCUBEMAP_FACES face = D3DCUBEMAP_FACE_POSITIVE_X; + + switch (cubeFace) + { + case GL_TEXTURE_CUBE_MAP_POSITIVE_X: + face = D3DCUBEMAP_FACE_POSITIVE_X; + break; + case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: + face = D3DCUBEMAP_FACE_NEGATIVE_X; + break; + case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: + face = D3DCUBEMAP_FACE_POSITIVE_Y; + break; + case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: + face = D3DCUBEMAP_FACE_NEGATIVE_Y; + break; + case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: + face = D3DCUBEMAP_FACE_POSITIVE_Z; + break; + case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: + face = D3DCUBEMAP_FACE_NEGATIVE_Z; + break; + default: UNREACHABLE(); + } + + return face; +} + +DWORD ConvertColorMask(bool red, bool green, bool blue, bool alpha) +{ + return (red ? D3DCOLORWRITEENABLE_RED : 0) | + (green ? D3DCOLORWRITEENABLE_GREEN : 0) | + (blue ? D3DCOLORWRITEENABLE_BLUE : 0) | + (alpha ? D3DCOLORWRITEENABLE_ALPHA : 0); +} + +D3DTEXTUREFILTERTYPE ConvertMagFilter(GLenum magFilter, float maxAnisotropy) +{ + if (maxAnisotropy > 1.0f) + { + return D3DTEXF_ANISOTROPIC; + } + + D3DTEXTUREFILTERTYPE d3dMagFilter = D3DTEXF_POINT; + switch (magFilter) + { + case GL_NEAREST: d3dMagFilter = D3DTEXF_POINT; break; + case GL_LINEAR: d3dMagFilter = D3DTEXF_LINEAR; break; + default: UNREACHABLE(); + } + + return d3dMagFilter; +} + +void ConvertMinFilter(GLenum minFilter, D3DTEXTUREFILTERTYPE *d3dMinFilter, D3DTEXTUREFILTERTYPE *d3dMipFilter, float maxAnisotropy) +{ + switch (minFilter) + { + case GL_NEAREST: + *d3dMinFilter = D3DTEXF_POINT; + *d3dMipFilter = D3DTEXF_NONE; + break; + case GL_LINEAR: + *d3dMinFilter = D3DTEXF_LINEAR; + *d3dMipFilter = D3DTEXF_NONE; + break; + case GL_NEAREST_MIPMAP_NEAREST: + *d3dMinFilter = D3DTEXF_POINT; + *d3dMipFilter = D3DTEXF_POINT; + break; + case GL_LINEAR_MIPMAP_NEAREST: + *d3dMinFilter = D3DTEXF_LINEAR; + *d3dMipFilter = D3DTEXF_POINT; + break; + case GL_NEAREST_MIPMAP_LINEAR: + *d3dMinFilter = D3DTEXF_POINT; + *d3dMipFilter = D3DTEXF_LINEAR; + break; + case GL_LINEAR_MIPMAP_LINEAR: + *d3dMinFilter = D3DTEXF_LINEAR; + *d3dMipFilter = D3DTEXF_LINEAR; + break; + default: + *d3dMinFilter = D3DTEXF_POINT; + *d3dMipFilter = D3DTEXF_NONE; + UNREACHABLE(); + } + + if (maxAnisotropy > 1.0f) + { + *d3dMinFilter = D3DTEXF_ANISOTROPIC; + } +} + +bool ConvertPrimitiveType(GLenum primitiveType, GLsizei elementCount, + D3DPRIMITIVETYPE *d3dPrimitiveType, int *d3dPrimitiveCount) +{ + switch (primitiveType) + { + case GL_POINTS: + *d3dPrimitiveType = D3DPT_POINTLIST; + *d3dPrimitiveCount = elementCount; + break; + case GL_LINES: + *d3dPrimitiveType = D3DPT_LINELIST; + *d3dPrimitiveCount = elementCount / 2; + break; + case GL_LINE_LOOP: + *d3dPrimitiveType = D3DPT_LINESTRIP; + *d3dPrimitiveCount = elementCount - 1; // D3D doesn't support line loops, so we draw the last line separately + break; + case GL_LINE_STRIP: + *d3dPrimitiveType = D3DPT_LINESTRIP; + *d3dPrimitiveCount = elementCount - 1; + break; + case GL_TRIANGLES: + *d3dPrimitiveType = D3DPT_TRIANGLELIST; + *d3dPrimitiveCount = elementCount / 3; + break; + case GL_TRIANGLE_STRIP: + *d3dPrimitiveType = D3DPT_TRIANGLESTRIP; + *d3dPrimitiveCount = elementCount - 2; + break; + case GL_TRIANGLE_FAN: + *d3dPrimitiveType = D3DPT_TRIANGLEFAN; + *d3dPrimitiveCount = elementCount - 2; + break; + default: + return false; + } + + return true; +} + +D3DFORMAT ConvertRenderbufferFormat(GLenum format) +{ + switch (format) + { + case GL_NONE: return D3DFMT_NULL; + case GL_RGBA4: + case GL_RGB5_A1: + case GL_RGBA8_OES: return D3DFMT_A8R8G8B8; + case GL_RGB565: return D3DFMT_R5G6B5; + case GL_RGB8_OES: return D3DFMT_X8R8G8B8; + case GL_DEPTH_COMPONENT16: + case GL_STENCIL_INDEX8: + case GL_DEPTH24_STENCIL8_OES: return D3DFMT_D24S8; + default: UNREACHABLE(); return D3DFMT_A8R8G8B8; + } +} + +D3DMULTISAMPLE_TYPE GetMultisampleTypeFromSamples(GLsizei samples) +{ + if (samples <= 1) + return D3DMULTISAMPLE_NONE; + else + return (D3DMULTISAMPLE_TYPE)samples; +} + +} + +namespace dx2es +{ + +unsigned int GetStencilSize(D3DFORMAT stencilFormat) +{ + if (stencilFormat == D3DFMT_INTZ) + { + return 8; + } + switch(stencilFormat) + { + case D3DFMT_D24FS8: + case D3DFMT_D24S8: + return 8; + case D3DFMT_D24X4S4: + return 4; + case D3DFMT_D15S1: + return 1; + case D3DFMT_D16_LOCKABLE: + case D3DFMT_D32: + case D3DFMT_D24X8: + case D3DFMT_D32F_LOCKABLE: + case D3DFMT_D16: + return 0; + //case D3DFMT_D32_LOCKABLE: return 0; // DirectX 9Ex only + //case D3DFMT_S8_LOCKABLE: return 8; // DirectX 9Ex only + default: + return 0; + } +} + +unsigned int GetAlphaSize(D3DFORMAT colorFormat) +{ + switch (colorFormat) + { + case D3DFMT_A16B16G16R16F: + return 16; + case D3DFMT_A32B32G32R32F: + return 32; + case D3DFMT_A2R10G10B10: + return 2; + case D3DFMT_A8R8G8B8: + return 8; + case D3DFMT_A1R5G5B5: + return 1; + case D3DFMT_X8R8G8B8: + case D3DFMT_R5G6B5: + return 0; + default: + return 0; + } +} + +unsigned int GetRedSize(D3DFORMAT colorFormat) +{ + switch (colorFormat) + { + case D3DFMT_A16B16G16R16F: + return 16; + case D3DFMT_A32B32G32R32F: + return 32; + case D3DFMT_A2R10G10B10: + return 10; + case D3DFMT_A8R8G8B8: + case D3DFMT_X8R8G8B8: + return 8; + case D3DFMT_A1R5G5B5: + case D3DFMT_R5G6B5: + return 5; + default: + return 0; + } +} + +unsigned int GetGreenSize(D3DFORMAT colorFormat) +{ + switch (colorFormat) + { + case D3DFMT_A16B16G16R16F: + return 16; + case D3DFMT_A32B32G32R32F: + return 32; + case D3DFMT_A2R10G10B10: + return 10; + case D3DFMT_A8R8G8B8: + case D3DFMT_X8R8G8B8: + return 8; + case D3DFMT_A1R5G5B5: + return 5; + case D3DFMT_R5G6B5: + return 6; + default: + return 0; + } +} + +unsigned int GetBlueSize(D3DFORMAT colorFormat) +{ + switch (colorFormat) + { + case D3DFMT_A16B16G16R16F: + return 16; + case D3DFMT_A32B32G32R32F: + return 32; + case D3DFMT_A2R10G10B10: + return 10; + case D3DFMT_A8R8G8B8: + case D3DFMT_X8R8G8B8: + return 8; + case D3DFMT_A1R5G5B5: + case D3DFMT_R5G6B5: + return 5; + default: + return 0; + } +} + +unsigned int GetDepthSize(D3DFORMAT depthFormat) +{ + if (depthFormat == D3DFMT_INTZ) + { + return 24; + } + switch (depthFormat) + { + case D3DFMT_D16_LOCKABLE: return 16; + case D3DFMT_D32: return 32; + case D3DFMT_D15S1: return 15; + case D3DFMT_D24S8: return 24; + case D3DFMT_D24X8: return 24; + case D3DFMT_D24X4S4: return 24; + case D3DFMT_D16: return 16; + case D3DFMT_D32F_LOCKABLE: return 32; + case D3DFMT_D24FS8: return 24; + //case D3DFMT_D32_LOCKABLE: return 32; // D3D9Ex only + //case D3DFMT_S8_LOCKABLE: return 0; // D3D9Ex only + default: return 0; + } +} + +GLsizei GetSamplesFromMultisampleType(D3DMULTISAMPLE_TYPE type) +{ + if (type == D3DMULTISAMPLE_NONMASKABLE) + return 0; + else + return type; +} + +bool IsFormatChannelEquivalent(D3DFORMAT d3dformat, GLenum format) +{ + switch (d3dformat) + { + case D3DFMT_L8: + return (format == GL_LUMINANCE); + case D3DFMT_A8L8: + return (format == GL_LUMINANCE_ALPHA); + case D3DFMT_DXT1: + return (format == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT || format == GL_COMPRESSED_RGB_S3TC_DXT1_EXT); + case D3DFMT_DXT3: + return (format == GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE); + case D3DFMT_DXT5: + return (format == GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE); + case D3DFMT_A8R8G8B8: + case D3DFMT_A16B16G16R16F: + case D3DFMT_A32B32G32R32F: + return (format == GL_RGBA || format == GL_BGRA_EXT); + case D3DFMT_X8R8G8B8: + return (format == GL_RGB); + default: + if (d3dformat == D3DFMT_INTZ && gl::IsDepthTexture(format)) + return true; + return false; + } +} + +bool ConvertReadBufferFormat(D3DFORMAT d3dformat, GLenum *format, GLenum *type) +{ + switch (d3dformat) + { + case D3DFMT_A8R8G8B8: + *type = GL_UNSIGNED_BYTE; + *format = GL_BGRA_EXT; + break; + case D3DFMT_X8R8G8B8: + *type = GL_UNSIGNED_BYTE; + *format = GL_RGB; + break; + case D3DFMT_R5G6B5: + *type = GL_UNSIGNED_SHORT_5_6_5; + *format = GL_RGB; + break; + case D3DFMT_A16B16G16R16F: + *type = GL_HALF_FLOAT_OES; + *format = GL_RGBA; + break; + case D3DFMT_A32B32G32R32F: + *type = GL_FLOAT; + *format = GL_RGBA; + break; + case D3DFMT_A4R4G4B4: + *type = GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT; + *format = GL_BGRA_EXT; + break; + case D3DFMT_A1R5G5B5: + *type = GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT; + *format = GL_BGRA_EXT; + break; + default: + *type = GL_NONE; + *format = GL_NONE; + return false; + } + return true; +} + +GLenum ConvertBackBufferFormat(D3DFORMAT format) +{ + switch (format) + { + case D3DFMT_A4R4G4B4: return GL_RGBA4; + case D3DFMT_A8R8G8B8: return GL_RGBA8_OES; + case D3DFMT_A1R5G5B5: return GL_RGB5_A1; + case D3DFMT_R5G6B5: return GL_RGB565; + case D3DFMT_X8R8G8B8: return GL_RGB8_OES; + default: + UNREACHABLE(); + } + + return GL_RGBA4; +} + +GLenum ConvertDepthStencilFormat(D3DFORMAT format) +{ + if (format == D3DFMT_INTZ) + { + return GL_DEPTH24_STENCIL8_OES; + } + switch (format) + { + case D3DFMT_D16: + case D3DFMT_D24X8: + return GL_DEPTH_COMPONENT16; + case D3DFMT_D24S8: + return GL_DEPTH24_STENCIL8_OES; + default: + UNREACHABLE(); + } + + return GL_DEPTH24_STENCIL8_OES; +} + +} + +namespace dx +{ + +bool IsCompressedFormat(D3DFORMAT surfaceFormat) +{ + switch(surfaceFormat) + { + case D3DFMT_DXT1: + case D3DFMT_DXT2: + case D3DFMT_DXT3: + case D3DFMT_DXT4: + case D3DFMT_DXT5: + return true; + default: + return false; + } +} + +size_t ComputeRowSize(D3DFORMAT format, unsigned int width) +{ + if (format == D3DFMT_INTZ) + { + return 4 * width; + } + switch (format) + { + case D3DFMT_L8: + return 1 * width; + case D3DFMT_A8L8: + return 2 * width; + case D3DFMT_X8R8G8B8: + case D3DFMT_A8R8G8B8: + return 4 * width; + case D3DFMT_A16B16G16R16F: + return 8 * width; + case D3DFMT_A32B32G32R32F: + return 16 * width; + case D3DFMT_DXT1: + return 8 * ((width + 3) / 4); + case D3DFMT_DXT3: + case D3DFMT_DXT5: + return 16 * ((width + 3) / 4); + default: + UNREACHABLE(); + return 0; + } +} + +} + +std::string getTempPath() +{ + char path[MAX_PATH]; + DWORD pathLen = GetTempPathA(sizeof(path) / sizeof(path[0]), path); + if (pathLen == 0) + { + UNREACHABLE(); + return std::string(); + } + + UINT unique = GetTempFileNameA(path, "sh", 0, path); + if (unique == 0) + { + UNREACHABLE(); + return std::string(); + } + + return path; +} + +void writeFile(const char* path, const void* content, size_t size) +{ + FILE* file = fopen(path, "w"); + if (!file) + { + UNREACHABLE(); + return; + } + + fwrite(content, sizeof(char), size, file); + fclose(file); +} |