diff options
Diffstat (limited to 'opengl/libagl2/src/texture.cpp')
| -rw-r--r-- | opengl/libagl2/src/texture.cpp | 534 |
1 files changed, 0 insertions, 534 deletions
diff --git a/opengl/libagl2/src/texture.cpp b/opengl/libagl2/src/texture.cpp deleted file mode 100644 index 4de1f16..0000000 --- a/opengl/libagl2/src/texture.cpp +++ /dev/null @@ -1,534 +0,0 @@ -#include "gles2context.h" - -//#undef LOGD -//#define LOGD(...) - -#define API_ENTRY -#define CALL_GL_API(NAME,...) LOGD("?"#NAME); assert(0); -#define CALL_GL_API_RETURN(NAME,...) LOGD("?"#NAME); assert(0); return 0; - -static inline GGLTexture * AllocTexture() -{ - GGLTexture * tex = (GGLTexture *)calloc(1, sizeof(GGLTexture)); - tex->minFilter = GGLTexture::GGL_LINEAR; // should be NEAREST_ MIPMAP_LINEAR - tex->magFilter = GGLTexture::GGL_LINEAR; - return tex; -} - -void GLES2Context::InitializeTextures() -{ - tex.textures = std::map<GLuint, GGLTexture *>(); // the entire struct has been zeroed in constructor - tex.tex2D = AllocTexture(); - tex.textures[GL_TEXTURE_2D] = tex.tex2D; - tex.texCube = AllocTexture(); - tex.textures[GL_TEXTURE_CUBE_MAP] = tex.texCube; - for (unsigned i = 0; i < GGL_MAXCOMBINEDTEXTUREIMAGEUNITS; i++) { - tex.tmus[i] = NULL; - tex.sampler2tmu[i] = NULL; - } - - tex.active = 0; - - tex.free = max(GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP) + 1; - - tex.tex2D->format = GGL_PIXEL_FORMAT_RGBA_8888; - tex.tex2D->type = GL_TEXTURE_2D; - tex.tex2D->levelCount = 1; - tex.tex2D->wrapS = tex.tex2D->wrapT = GGLTexture::GGL_REPEAT; - tex.tex2D->minFilter = tex.tex2D->magFilter = GGLTexture::GGL_NEAREST; - tex.tex2D->width = tex.tex2D->height = 1; - tex.tex2D->levels = malloc(4); - *(unsigned *)tex.tex2D->levels = 0xff000000; - - - tex.texCube->format = GGL_PIXEL_FORMAT_RGBA_8888; - tex.texCube->type = GL_TEXTURE_CUBE_MAP; - tex.texCube->levelCount = 1; - tex.texCube->wrapS = tex.texCube->wrapT = GGLTexture::GGL_REPEAT; - tex.texCube->minFilter = tex.texCube->magFilter = GGLTexture::GGL_NEAREST; - tex.texCube->width = tex.texCube->height = 1; - tex.texCube->levels = malloc(4 * 6); - static unsigned texels [6] = {0xff0000ff, 0xff00ff00, 0xffff0000, - 0xff00ffff, 0xffffff00, 0xffff00ff - }; - memcpy(tex.texCube->levels, texels, sizeof texels); - - //texture.levelCount = GenerateMipmaps(texture.levels, texture.width, texture.height); - - // static unsigned texels [6] = {0xff0000ff, 0xff00ff00, 0xffff0000, - // 0xff00ffff, 0xffffff00, 0xffff00ff}; - // memcpy(texture.levels[0], texels, sizeof texels); - // texture.format = GGL_PIXEL_FORMAT_RGBA_8888; - // texture.width = texture.height = 1; - //texture.height /= 6; - //texture.type = GL_TEXTURE_CUBE_MAP; - - tex.unpack = 4; -} - -void GLES2Context::TextureState::UpdateSampler(GGLInterface * iface, unsigned tmu) -{ - for (unsigned i = 0; i < GGL_MAXCOMBINEDTEXTUREIMAGEUNITS; i++) - if (tmu == sampler2tmu[i]) - iface->SetSampler(iface, i, tmus[tmu]); -} - -void GLES2Context::UninitializeTextures() -{ - for (std::map<GLuint, GGLTexture *>::iterator it = tex.textures.begin(); it != tex.textures.end(); it++) { - if (!it->second) - continue; - free(it->second->levels); - free(it->second); - } -} - -static inline void GetFormatAndBytesPerPixel(const GLenum format, unsigned * bytesPerPixel, - GGLPixelFormat * texFormat) -{ - switch (format) { - case GL_ALPHA: - *texFormat = GGL_PIXEL_FORMAT_A_8; - *bytesPerPixel = 1; - break; - case GL_LUMINANCE: - *texFormat = GGL_PIXEL_FORMAT_L_8; - *bytesPerPixel = 1; - break; - case GL_LUMINANCE_ALPHA: - *texFormat = GGL_PIXEL_FORMAT_LA_88; - *bytesPerPixel = 2; - break; - case GL_RGB: - *texFormat = GGL_PIXEL_FORMAT_RGB_888; - *bytesPerPixel = 3; - break; - case GL_RGBA: - *texFormat = GGL_PIXEL_FORMAT_RGBA_8888; - *bytesPerPixel = 4; - break; - - // internal formats to avoid conversion - case GL_UNSIGNED_SHORT_5_6_5: - *texFormat = GGL_PIXEL_FORMAT_RGB_565; - *bytesPerPixel = 2; - break; - - default: - assert(0); - return; - } -} - -static inline void CopyTexture(char * dst, const char * src, const unsigned bytesPerPixel, - const unsigned sx, const unsigned sy, const unsigned sw, - const unsigned dx, const unsigned dy, const unsigned dw, - const unsigned w, const unsigned h) -{ - const unsigned bpp = bytesPerPixel; - if (dw == sw && dw == w && sx == 0 && dx == 0) - memcpy(dst + dy * dw * bpp, src + sy * sw * bpp, w * h * bpp); - else - for (unsigned y = 0; y < h; y++) - memcpy(dst + ((dy + y) * dw + dx) * bpp, src + ((sy + y) * sw + sx) * bpp, w * bpp); -} - -void glActiveTexture(GLenum texture) -{ - GLES2_GET_CONST_CONTEXT(ctx); - unsigned index = texture - GL_TEXTURE0; - assert(NELEM(ctx->tex.tmus) > index); -// LOGD("agl2: glActiveTexture %u", index); - ctx->tex.active = index; -} - -void glBindTexture(GLenum target, GLuint texture) -{ - GLES2_GET_CONST_CONTEXT(ctx); -// LOGD("agl2: glBindTexture target=0x%.4X texture=%u active=%u", target, texture, ctx->tex.active); - std::map<GLuint, GGLTexture *>::iterator it = ctx->tex.textures.find(texture); - GGLTexture * tex = NULL; - if (it != ctx->tex.textures.end()) { - tex = it->second; - if (!tex) { - tex = AllocTexture(); - tex->type = target; - it->second = tex; -// LOGD("agl2: glBindTexture allocTexture"); - } -// else -// LOGD("agl2: glBindTexture bind existing texture"); - assert(target == tex->type); - } else if (0 == texture) { - if (GL_TEXTURE_2D == target) - { - tex = ctx->tex.tex2D; -// LOGD("agl2: glBindTexture bind default tex2D"); - } - else if (GL_TEXTURE_CUBE_MAP == target) - { - tex = ctx->tex.texCube; -// LOGD("agl2: glBindTexture bind default texCube"); - } - else - assert(0); - } else { - if (texture <= ctx->tex.free) - ctx->tex.free = texture + 1; - tex = AllocTexture(); - tex->type = target; - ctx->tex.textures[texture] = tex; -// LOGD("agl2: glBindTexture new texture=%u", texture); - } - ctx->tex.tmus[ctx->tex.active] = tex; -// LOGD("agl2: glBindTexture format=0x%.2X w=%u h=%u levels=%p", tex->format, -// tex->width, tex->height, tex->levels); - ctx->tex.UpdateSampler(ctx->iface, ctx->tex.active); -} - -void API_ENTRY(glCompressedTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const GLvoid* data) -{ - CALL_GL_API(glCompressedTexImage2D, target, level, internalformat, width, height, border, imageSize, data); -} - -void API_ENTRY(glCompressedTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const GLvoid* data) -{ - CALL_GL_API(glCompressedTexSubImage2D, target, level, xoffset, yoffset, width, height, format, imageSize, data); -} - -void glCopyTexImage2D(GLenum target, GLint level, GLenum internalformat, - GLint x, GLint y, GLsizei width, GLsizei height, GLint border) -{ - GLES2_GET_CONST_CONTEXT(ctx); -// LOGD("agl2: glCopyTexImage2D target=0x%.4X internalformat=0x%.4X", target, internalformat); -// LOGD("x=%d y=%d width=%d height=%d border=%d level=%d ", x, y, width, height, border, level); - assert(0 == border); - assert(0 == level); - unsigned bytesPerPixel = 0; - GGLPixelFormat texFormat = GGL_PIXEL_FORMAT_UNKNOWN; - GetFormatAndBytesPerPixel(internalformat, &bytesPerPixel, &texFormat); - - assert(texFormat == ctx->rasterizer.frameSurface.format); -// LOGD("texFormat=0x%.2X bytesPerPixel=%d \n", texFormat, bytesPerPixel); - unsigned offset = 0, size = width * height * bytesPerPixel, totalSize = size; - - assert(ctx->tex.tmus[ctx->tex.active]); - assert(y + height <= ctx->rasterizer.frameSurface.height); - assert(x + width <= ctx->rasterizer.frameSurface.width); - GGLTexture & tex = *ctx->tex.tmus[ctx->tex.active]; - tex.width = width; - tex.height = height; - tex.levelCount = 1; - tex.format = texFormat; - switch (target) { - case GL_TEXTURE_2D: - tex.levels = realloc(tex.levels, totalSize); - CopyTexture((char *)tex.levels, (const char *)ctx->rasterizer.frameSurface.data, bytesPerPixel, - x, y, ctx->rasterizer.frameSurface.width, 0, 0, width, width, height); - break; - default: - assert(0); - return; - } - ctx->tex.UpdateSampler(ctx->iface, ctx->tex.active); -} - -void glCopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height) -{ - // x, y are src offset - // xoffset and yoffset are dst offset - GLES2_GET_CONST_CONTEXT(ctx); -// LOGD("agl2: glCopyTexSubImage2D target=0x%.4X level=%d", target, level); -// LOGD("xoffset=%d yoffset=%d x=%d y=%d width=%d height=%d", xoffset, yoffset, x, y, width, height); - assert(0 == level); - - unsigned bytesPerPixel = 4; - unsigned offset = 0, size = width * height * bytesPerPixel, totalSize = size; - - assert(ctx->tex.tmus[ctx->tex.active]); - GGLTexture & tex = *ctx->tex.tmus[ctx->tex.active]; - - assert(tex.format == ctx->rasterizer.frameSurface.format); - assert(GGL_PIXEL_FORMAT_RGBA_8888 == tex.format); - - const unsigned srcWidth = ctx->rasterizer.frameSurface.width; - const unsigned srcHeight = ctx->rasterizer.frameSurface.height; - - assert(x >= 0 && y >= 0); - assert(xoffset >= 0 && yoffset >= 0); - assert(x + width <= srcWidth); - assert(y + height <= srcHeight); - assert(xoffset + width <= tex.width); - assert(yoffset + height <= tex.height); - - switch (target) { - case GL_TEXTURE_2D: - CopyTexture((char *)tex.levels, (const char *)ctx->rasterizer.frameSurface.data, bytesPerPixel, - x, y, srcWidth, xoffset, yoffset, tex.width, width, height); - break; - default: - assert(0); - return; - } - ctx->tex.UpdateSampler(ctx->iface, ctx->tex.active); -} - -void glDeleteTextures(GLsizei n, const GLuint* textures) -{ - GLES2_GET_CONST_CONTEXT(ctx); - for (unsigned i = 0; i < n; i++) { - std::map<GLuint, GGLTexture *>::iterator it = ctx->tex.textures.find(textures[i]); - if (it == ctx->tex.textures.end()) - continue; - ctx->tex.free = min(ctx->tex.free, textures[i]); - for (unsigned i = 0; i < GGL_MAXCOMBINEDTEXTUREIMAGEUNITS; i++) - if (ctx->tex.tmus[i] == it->second) { - if (GL_TEXTURE_2D == it->second->type) - ctx->tex.tmus[i] = ctx->tex.tex2D; - else if (GL_TEXTURE_CUBE_MAP == it->second->type) - ctx->tex.tmus[i] = ctx->tex.texCube; - else - assert(0); - ctx->tex.UpdateSampler(ctx->iface, i); - } - if (it->second) { - free(it->second->levels); - free(it->second); - } - ctx->tex.textures.erase(it); - } -} - -void glGenTextures(GLsizei n, GLuint* textures) -{ - GLES2_GET_CONST_CONTEXT(ctx); - for (unsigned i = 0; i < n; i++) { - textures[i] = 0; - for (ctx->tex.free; ctx->tex.free < 0xffffffffu; ctx->tex.free++) - if (ctx->tex.textures.find(ctx->tex.free) == ctx->tex.textures.end()) { - ctx->tex.textures[ctx->tex.free] = NULL; - textures[i] = ctx->tex.free; - ctx->tex.free++; - break; - } - assert(textures[i]); - } -} - -void API_ENTRY(glGetTexParameterfv)(GLenum target, GLenum pname, GLfloat* params) -{ - CALL_GL_API(glGetTexParameterfv, target, pname, params); -} -void API_ENTRY(glGetTexParameteriv)(GLenum target, GLenum pname, GLint* params) -{ - CALL_GL_API(glGetTexParameteriv, target, pname, params); -} - -GLboolean glIsTexture(GLuint texture) -{ - GLES2_GET_CONST_CONTEXT(ctx); - if (ctx->tex.textures.find(texture) == ctx->tex.textures.end()) - return GL_FALSE; - else - return GL_TRUE; -} - -void glPixelStorei(GLenum pname, GLint param) -{ - GLES2_GET_CONST_CONTEXT(ctx); - assert(GL_UNPACK_ALIGNMENT == pname); - assert(1 == param || 2 == param || 4 == param || 8 == param); -// LOGD("\n*\n* agl2: glPixelStorei not implemented pname=0x%.4X param=%d \n*", pname, param); - ctx->tex.unpack = param; -// CALL_GL_API(glPixelStorei, pname, param); -} -void glTexImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width, - GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid* pixels) -{ - GLES2_GET_CONST_CONTEXT(ctx); -// LOGD("agl2: glTexImage2D internalformat=0x%.4X format=0x%.4X type=0x%.4X \n", internalformat, format, type); -// LOGD("width=%d height=%d border=%d level=%d pixels=%p \n", width, height, border, level, pixels); - switch (type) { - case GL_UNSIGNED_BYTE: - break; - case GL_UNSIGNED_SHORT_5_6_5: - internalformat = format = GL_UNSIGNED_SHORT_5_6_5; - assert(4 == ctx->tex.unpack); - break; - default: - assert(0); - } - assert(internalformat == format); - assert(0 == border); - if (0 != level) { - LOGD("agl2: glTexImage2D level=%d", level); - return; - } - unsigned bytesPerPixel = 0; - GGLPixelFormat texFormat = GGL_PIXEL_FORMAT_UNKNOWN; - GetFormatAndBytesPerPixel(format, &bytesPerPixel, &texFormat); - - assert(texFormat && bytesPerPixel); -// LOGD("texFormat=0x%.2X bytesPerPixel=%d active=%u", texFormat, bytesPerPixel, ctx->tex.active); - unsigned offset = 0, size = width * height * bytesPerPixel, totalSize = size; - - assert(ctx->tex.tmus[ctx->tex.active]); - - GGLTexture & tex = *ctx->tex.tmus[ctx->tex.active]; - tex.width = width; - tex.height = height; - tex.levelCount = 1; - tex.format = texFormat; - - switch (target) { - case GL_TEXTURE_2D: - assert(GL_TEXTURE_2D == ctx->tex.tmus[ctx->tex.active]->type); - offset = 0; - break; - break; - case GL_TEXTURE_CUBE_MAP_POSITIVE_X: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: - assert(GL_TEXTURE_CUBE_MAP == ctx->tex.tmus[ctx->tex.active]->type); - assert(width == height); - offset = (target - GL_TEXTURE_CUBE_MAP_POSITIVE_X) * size; - totalSize = 6 * size; - break; - default: - assert(0); - return; - } - - tex.levels = realloc(tex.levels, totalSize); - if (pixels) - CopyTexture((char *)tex.levels, (const char *)pixels, bytesPerPixel, 0, 0, width, 0, 0, width, width, height); - ctx->tex.UpdateSampler(ctx->iface, ctx->tex.active); -} - -void glTexParameterf(GLenum target, GLenum pname, GLfloat param) -{ -// LOGD("agl2: glTexParameterf target=0x%.4X pname=0x%.4X param=%f", target, pname, param); - glTexParameteri(target, pname, param); -} -void API_ENTRY(glTexParameterfv)(GLenum target, GLenum pname, const GLfloat* params) -{ - CALL_GL_API(glTexParameterfv, target, pname, params); -} -void glTexParameteri(GLenum target, GLenum pname, GLint param) -{ - GLES2_GET_CONST_CONTEXT(ctx); -// LOGD("alg2: glTexParameteri target=0x%.0X pname=0x%.4X param=0x%.4X", -// target, pname, param); - assert(ctx->tex.tmus[ctx->tex.active]); - assert(target == ctx->tex.tmus[ctx->tex.active]->type); - GGLTexture & tex = *ctx->tex.tmus[ctx->tex.active]; - switch (pname) { - case GL_TEXTURE_WRAP_S: - case GL_TEXTURE_WRAP_T: - GGLTexture::GGLTextureWrap wrap; - switch (param) { - case GL_REPEAT: - wrap = GGLTexture::GGL_REPEAT; - break; - case GL_CLAMP_TO_EDGE: - wrap = GGLTexture::GGL_CLAMP_TO_EDGE; - break; - case GL_MIRRORED_REPEAT: - wrap = GGLTexture::GGL_MIRRORED_REPEAT; - break; - default: - assert(0); - return; - } - if (GL_TEXTURE_WRAP_S == pname) - tex.wrapS = wrap; - else - tex.wrapT = wrap; - break; - case GL_TEXTURE_MIN_FILTER: - switch (param) { - case GL_NEAREST: - tex.minFilter = GGLTexture::GGL_NEAREST; - break; - case GL_LINEAR: - tex.minFilter = GGLTexture::GGL_LINEAR; - break; - case GL_NEAREST_MIPMAP_NEAREST: -// tex.minFilter = GGLTexture::GGL_NEAREST_MIPMAP_NEAREST; - break; - case GL_NEAREST_MIPMAP_LINEAR: -// tex.minFilter = GGLTexture::GGL_NEAREST_MIPMAP_LINEAR; - break; - case GL_LINEAR_MIPMAP_NEAREST: -// tex.minFilter = GGLTexture::GGL_LINEAR_MIPMAP_NEAREST; - break; - case GL_LINEAR_MIPMAP_LINEAR: -// tex.minFilter = GGLTexture::GGL_LINEAR_MIPMAP_LINEAR; - break; - default: - assert(0); - return; - } - break; - case GL_TEXTURE_MAG_FILTER: - switch (param) { - case GL_NEAREST: - tex.minFilter = GGLTexture::GGL_NEAREST; - break; - case GL_LINEAR: - tex.minFilter = GGLTexture::GGL_LINEAR; - break; - default: - assert(0); - return; - } - break; - default: - assert(0); - return; - } - // implementation restriction - if (tex.magFilter != tex.minFilter) - tex.magFilter = tex.minFilter = GGLTexture::GGL_LINEAR; - ctx->tex.UpdateSampler(ctx->iface, ctx->tex.active); -} -void API_ENTRY(glTexParameteriv)(GLenum target, GLenum pname, const GLint* params) -{ - CALL_GL_API(glTexParameteriv, target, pname, params); -} -void glTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid* pixels) -{ - GLES2_GET_CONST_CONTEXT(ctx); -// LOGD("agl2: glTexSubImage2D target=0x%.4X level=%d xoffset=%d yoffset=%d width=%d height=%d format=0x%.4X type=0x%.4X pixels=%p", -// target, level, xoffset, yoffset, width, height, format, type, pixels); - assert(0 == level); - assert(target == ctx->tex.tmus[ctx->tex.active]->type); - switch (type) { - case GL_UNSIGNED_BYTE: - break; - case GL_UNSIGNED_SHORT_5_6_5: - format = GL_UNSIGNED_SHORT_5_6_5; - assert(4 == ctx->tex.unpack); - break; - default: - assert(0); - } - GGLTexture & tex = *ctx->tex.tmus[ctx->tex.active]; - GGLPixelFormat texFormat = GGL_PIXEL_FORMAT_UNKNOWN; - unsigned bytesPerPixel = 0; - GetFormatAndBytesPerPixel(format, &bytesPerPixel, &texFormat); - assert(texFormat == tex.format); - assert(GL_UNSIGNED_BYTE == type); - switch (target) { - case GL_TEXTURE_2D: - CopyTexture((char *)tex.levels, (const char *)pixels, bytesPerPixel, 0, 0, width, xoffset, - yoffset, tex.width, width, height); - break; - default: - assert(0); - } - ctx->tex.UpdateSampler(ctx->iface, ctx->tex.active); -} |