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fix(texture): correctly handle BGRA in glTexSubImage2D, fixing missing tiles in Xaero

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This commit is contained in:
Swung0x48 2025-02-25 13:36:36 +08:00
parent de265cb84a
commit 4379f5d442
1 changed files with 59 additions and 49 deletions
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108
src/main/cpp/gl/texture.cpp
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@ -286,7 +286,8 @@ void glTexImage2D(GLenum target, GLint level,GLint internalFormat,GLsizei width,
LOG();
auto& tex = g_textures[bound_texture];
tex.internal_format = internalFormat;
tex.format = format;
GLenum transfer_format = format;
// tex.format = format;
LOG_D("mg_glTexImage2D,target: %s,level: %d,internalFormat: %s->%s,width: %d,height: %d,border: %d,format: %s,type: %s, pixels: 0x%x",
glEnumToString(target),level,glEnumToString(internalFormat),glEnumToString(internalFormat),
width,height,border,glEnumToString(format),glEnumToString(type), pixels);
@ -305,7 +306,8 @@ void glTexImage2D(GLenum target, GLint level,GLint internalFormat,GLsizei width,
return;
}
if (tex.format == GL_BGRA && internalFormat == GL_RGBA8 && width <= 128 && height <= 128) { // xaero has 64x64 tiles...hack here
if (transfer_format == GL_BGRA && tex.format != transfer_format && internalFormat == GL_RGBA8
&& width <= 128 && height <= 128) { // xaero has 64x64 tiles...hack here
LOG_D("Detected GL_BGRA format @ tex = %d, do swizzle", bound_texture);
if (tex.swizzle_param[0] == 0) { // assert this as never called glTexParameteri(..., GL_TEXTURE_SWIZZLE_R, ...)
tex.swizzle_param[0] = GL_RED;
@ -322,7 +324,7 @@ void glTexImage2D(GLenum target, GLint level,GLint internalFormat,GLsizei width,
tex.swizzle_param[1] = b;
tex.swizzle_param[2] = a;
tex.swizzle_param[3] = r;
tex.format = GL_RGBA;
tex.format = transfer_format;
LOAD_GLES_FUNC(glTexParameteri);
gles_glTexParameteri(target, GL_TEXTURE_SWIZZLE_R, tex.swizzle_param[0]);
@ -686,14 +688,24 @@ void glTexParameteriv(GLenum target, GLenum pname, const GLint* params) {
void glTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels) {
LOG();
LOAD_GLES_FUNC(glTexSubImage2D)
LOG_D("glTexSubImage2D, target = %s, level = %d, xoffset = %d, yoffset = %d, width = %d, height = %d, format = %s, type = %s, pixels = 0x%x",
glEnumToString(target), level, xoffset, yoffset, width, height, glEnumToString(format),
glEnumToString(type), pixels)
if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8) {
format = GL_RGBA;
type = GL_UNSIGNED_BYTE;
}
gles_glTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type, pixels);
CLEAR_GL_ERROR
CHECK_GL_ERROR
}
void glBindTexture(GLenum target, GLuint texture) {
LOG();
LOG_D("glBindTexture(0x%x, %d)", target, texture);
LOG_D("glBindTexture(%s, %d)", glEnumToString(target), texture);
LOAD_GLES_FUNC(glBindTexture)
INIT_CHECK_GL_ERROR
gles_glBindTexture(target, texture);
@ -742,50 +754,48 @@ void glGetTexImage(GLenum target, GLint level, GLenum format, GLenum type, void*
LOG_D("glGetTexImage, target = %s, level = %d, format = %s, type = %s, pixel = 0x%x",
glEnumToString(target), level, glEnumToString(format), glEnumToString(type), pixels)
return;
// GLint prevFBO;
// glGetIntegerv(GL_FRAMEBUFFER_BINDING, &prevFBO);
// GLenum bindingTarget = get_binding_for_target(target);
// if (bindingTarget == 0) return;
// GLint oldTexBinding;
// glActiveTexture(GL_TEXTURE0);
// glGetIntegerv(bindingTarget, &oldTexBinding);
// GLuint texture = static_cast<GLuint>(oldTexBinding);
// if (texture == 0) return;
// GLint width, height;
// glBindTexture(target, texture);
// glGetTexLevelParameteriv(target, level, GL_TEXTURE_WIDTH, &width);
// glGetTexLevelParameteriv(target, level, GL_TEXTURE_HEIGHT, &height);
// glBindTexture(target, oldTexBinding);
// if (width <= 0 || height <= 0) return;
// GLuint fbo;
// glGenFramebuffers(1, &fbo);
// glBindFramebuffer(GL_FRAMEBUFFER, fbo);
// if (target == GL_TEXTURE_2D || (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)) {
// glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, target, texture, level);
// } else {
// glDeleteFramebuffers(1, &fbo);
// glBindFramebuffer(GL_FRAMEBUFFER, prevFBO);
// return;
// }
// if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
// glDeleteFramebuffers(1, &fbo);
// glBindFramebuffer(GL_FRAMEBUFFER, prevFBO);
// return;
// }
// GLint oldViewport[4];
// glGetIntegerv(GL_VIEWPORT, oldViewport);
// glViewport(0, 0, width, height);
// GLint oldPackAlignment;
// glGetIntegerv(GL_PACK_ALIGNMENT, &oldPackAlignment);
// glPixelStorei(GL_PACK_ALIGNMENT, 1);
// glReadBuffer(GL_COLOR_ATTACHMENT0);
// glReadPixels(0, 0, width, height, format, type, pixels);
// glPixelStorei(GL_PACK_ALIGNMENT, oldPackAlignment);
// glViewport(oldViewport[0], oldViewport[1], oldViewport[2], oldViewport[3]);
// glDeleteFramebuffers(1, &fbo);
// glBindFramebuffer(GL_FRAMEBUFFER, prevFBO);
GLint prevFBO;
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &prevFBO);
GLenum bindingTarget = get_binding_for_target(target);
if (bindingTarget == 0) return;
GLint oldTexBinding;
glActiveTexture(GL_TEXTURE0);
glGetIntegerv(bindingTarget, &oldTexBinding);
GLuint texture = static_cast<GLuint>(oldTexBinding);
if (texture == 0) return;
GLint width, height;
glBindTexture(target, texture);
glGetTexLevelParameteriv(target, level, GL_TEXTURE_WIDTH, &width);
glGetTexLevelParameteriv(target, level, GL_TEXTURE_HEIGHT, &height);
glBindTexture(target, oldTexBinding);
if (width <= 0 || height <= 0) return;
GLuint fbo;
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
if (target == GL_TEXTURE_2D || (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)) {
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, target, texture, level);
} else {
glDeleteFramebuffers(1, &fbo);
glBindFramebuffer(GL_FRAMEBUFFER, prevFBO);
return;
}
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
glDeleteFramebuffers(1, &fbo);
glBindFramebuffer(GL_FRAMEBUFFER, prevFBO);
return;
}
GLint oldViewport[4];
glGetIntegerv(GL_VIEWPORT, oldViewport);
glViewport(0, 0, width, height);
GLint oldPackAlignment;
glGetIntegerv(GL_PACK_ALIGNMENT, &oldPackAlignment);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glReadBuffer(GL_COLOR_ATTACHMENT0);
glReadPixels(0, 0, width, height, format, type, pixels);
glPixelStorei(GL_PACK_ALIGNMENT, oldPackAlignment);
glViewport(oldViewport[0], oldViewport[1], oldViewport[2], oldViewport[3]);
glDeleteFramebuffers(1, &fbo);
glBindFramebuffer(GL_FRAMEBUFFER, prevFBO);
}
#if GLOBAL_DEBUG || DEBUG