a5fd6fe5d9
* WIP compressed textures, swizzles, sRGB sampling, ... * refactor texture type info & fix random bugs * fix preprocessing of sRGB textures * handle y-flipped basis textures * glcommon: better WebGL compat for compressed format detection * missed WEBGL_compressed_texture_pvrtc * implement compressed texture xcoding and uploading * Add basis_universal submodule * Reorganize texture loader code Clean up some code Isolate Basis Universal loader into a separate module * Add wrapper script for encoding .basis textures * basisu: honor custom metadata written by the mkbasis.py script * mkbasis.py: add --incredibly-slow and --dry-run * Move pixmap code from util/ to pixmap/ * Add an on-disk transcode cache for basis textures to speed up loads * Compress texture cache with zlib * Use readable format names for basisu cache filenames * basisu: mip bias test code * basisu: small caching cleanup * add TAISEI_BASISU_MIP_BIAS env variable * Improve OpenGL format matching heuristics * Document considerations for compressed format priority * Remove dead code * Enable two forgotten formats, BC3_RGBA and ATC_RGBA Also prefer BC7 over BC1/BC3 * Recognize GL_ANGLE_compressed_texture_etc for ETC2 textures * Default depth buffers to 24-bit; remove ANGLE hack * Fix glcommon_check_extension for GLES2/legacy gl * Add renderer feature bit for texture swizzle masks * glcommon: Fixup internal formats for GLES2 Sized internal formats are not allowed in GLES2 * Fix emscripten compile errors * Update basis_universal * remove more dead code * revert irrelevant stage4 change * shut up UBSan * basisu: shut up some debug spam * Add normalmap sampling helper to util.glslh * basisu: add a gray-alpha mode * mkbasis.py: Abort if image dimansions aren't multiples of 4 * Add basic Basis Universal encoding documentation (WIP) * doc/basisu: Add paragraph about modes; minor tweaks * basisu: workarounds for GL texture size requirements * gles20: fix uncompressed sRGB formats * Partial workaround for missing swizzles in gles2 and webgl * remove invalid assertion * New renderer API to expose glDrawBuffers-like functionality * stagedraw: disable all color outputs for copy_depth pass required for WebGL compatibility * support GL_ANGLE_request_extension * emscripten: include *.basis in gfx package Also fix a potential problem when more than one .pkgdir is used to construct emscripten packages * Don't rely on emscripten runtime to enable webgl extensions
61 lines
2 KiB
C
61 lines
2 KiB
C
/*
|
|
* This software is licensed under the terms of the MIT License.
|
|
* See COPYING for further information.
|
|
* ---
|
|
* Copyright (c) 2011-2019, Lukas Weber <laochailan@web.de>.
|
|
* Copyright (c) 2012-2019, Andrei Alexeyev <akari@taisei-project.org>.
|
|
*/
|
|
|
|
#include "taisei.h"
|
|
|
|
#include "gles.h"
|
|
#include "../common/backend.h"
|
|
#include "../gl33/gl33.h"
|
|
|
|
void gles_init(RendererBackend *gles_backend, int major, int minor) {
|
|
#ifdef TAISEI_BUILDCONF_HAVE_ANGLE
|
|
// Load ANGLE by default by setting up some SDL-specific environment vars.
|
|
// These are not overwritten if they are already set in the environment, so
|
|
// you can still override this behavior as usual.
|
|
|
|
#ifdef TAISEI_BUILDCONF_RELOCATABLE_INSTALL
|
|
// In a relocatable build, paths are relative to SDL_GetBasePath
|
|
char *basepath = SDL_GetBasePath();
|
|
char buf[strlen(basepath) + sizeof(TAISEI_BUILDCONF_ANGLE_GLES_PATH) + sizeof(TAISEI_BUILDCONF_ANGLE_EGL_PATH)];
|
|
|
|
snprintf(buf, sizeof(buf), "%s%s", basepath, TAISEI_BUILDCONF_ANGLE_GLES_PATH);
|
|
env_set("SDL_VIDEO_GL_DRIVER", buf, false);
|
|
|
|
snprintf(buf, sizeof(buf), "%s%s", basepath, TAISEI_BUILDCONF_ANGLE_EGL_PATH);
|
|
env_set("SDL_VIDEO_EGL_DRIVER", buf, false);
|
|
|
|
SDL_free(basepath);
|
|
#else
|
|
// Static absolute paths
|
|
env_set("SDL_VIDEO_GL_DRIVER", TAISEI_BUILDCONF_ANGLE_GLES_PATH, false);
|
|
env_set("SDL_VIDEO_EGL_DRIVER", TAISEI_BUILDCONF_ANGLE_EGL_PATH, false);
|
|
#endif
|
|
|
|
env_set("SDL_OPENGL_ES_DRIVER", 1, false);
|
|
#endif // TAISEI_BUILDCONF_HAVE_ANGLE
|
|
|
|
_r_backend_inherit(gles_backend, &_r_backend_gl33);
|
|
glcommon_setup_attributes(SDL_GL_CONTEXT_PROFILE_ES, major, minor, 0);
|
|
glcommon_load_library();
|
|
}
|
|
|
|
void gles_init_context(SDL_Window *w) {
|
|
GLVT_OF(_r_backend_gl33).init_context(w);
|
|
}
|
|
|
|
bool gles_screenshot(Pixmap *out) {
|
|
FloatRect vp;
|
|
r_framebuffer_viewport_current(NULL, &vp);
|
|
out->width = vp.w;
|
|
out->height = vp.h;
|
|
out->format = PIXMAP_FORMAT_RGBA8;
|
|
out->origin = PIXMAP_ORIGIN_BOTTOMLEFT;
|
|
out->data.untyped = pixmap_alloc_buffer_for_copy(out, &out->data_size);
|
|
glReadPixels(vp.x, vp.y, vp.w, vp.h, GL_RGBA, GL_UNSIGNED_BYTE, out->data.untyped);
|
|
return true;
|
|
}
|