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Tungstend 2025-02-06 03:03:38 +08:00
parent 571a7b74cb
commit 975ea1abd2
2 changed files with 48 additions and 12 deletions
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55
app/src/main/cpp/gl/framebuffer.c
View File

@ -20,13 +20,22 @@ GLint getMaxDrawBuffers() {
} }
void rebind_framebuffer(GLenum old_attachment, GLenum target_attachment) { void rebind_framebuffer(GLenum old_attachment, GLenum target_attachment) {
if (!bound_framebuffer || !bound_framebuffer->attachment) if (!bound_framebuffer)
return; return;
struct attachment_t attachment = bound_framebuffer->attachment[old_attachment - GL_COLOR_ATTACHMENT0]; struct attachment_t* attach;
if (bound_framebuffer->current_target == GL_DRAW_FRAMEBUFFER)
attach = bound_framebuffer->draw_attachment;
else
attach = bound_framebuffer->read_attachment;
if (!attach)
return;
struct attachment_t attachment = attach[old_attachment - GL_COLOR_ATTACHMENT0];
LOAD_GLES(glFramebufferTexture2D, void, GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level) LOAD_GLES(glFramebufferTexture2D, void, GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level)
gles_glFramebufferTexture2D(bound_framebuffer->target, target_attachment, attachment.textarget, attachment.texture, attachment.level); gles_glFramebufferTexture2D(bound_framebuffer->current_target, target_attachment, attachment.textarget, attachment.texture, attachment.level);
} }
void glBindFramebuffer(GLenum target, GLuint framebuffer) { void glBindFramebuffer(GLenum target, GLuint framebuffer) {
@ -39,9 +48,25 @@ void glBindFramebuffer(GLenum target, GLuint framebuffer) {
if (!bound_framebuffer) if (!bound_framebuffer)
bound_framebuffer = malloc(sizeof(struct framebuffer_t)); bound_framebuffer = malloc(sizeof(struct framebuffer_t));
free(bound_framebuffer->attachment);
bound_framebuffer->attachment = malloc(getMaxDrawBuffers() * sizeof(struct attachment_t)); switch (target) {
bound_framebuffer->target = target; case GL_DRAW_FRAMEBUFFER:
free(bound_framebuffer->draw_attachment);
bound_framebuffer->draw_attachment = malloc(getMaxDrawBuffers() * sizeof(struct attachment_t));
break;
case GL_READ_FRAMEBUFFER:
free(bound_framebuffer->read_attachment);
bound_framebuffer->read_attachment = malloc(getMaxDrawBuffers() * sizeof(struct attachment_t));
break;
case GL_FRAMEBUFFER:
free(bound_framebuffer->draw_attachment);
bound_framebuffer->draw_attachment = malloc(getMaxDrawBuffers() * sizeof(struct attachment_t));
free(bound_framebuffer->read_attachment);
bound_framebuffer->read_attachment = malloc(getMaxDrawBuffers() * sizeof(struct attachment_t));
break;
default:
break;
}
CHECK_GL_ERROR CHECK_GL_ERROR
} }
@ -51,10 +76,20 @@ void glFramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget,
LOG_D("glFramebufferTexture2D(0x%x, 0x%x, 0x%x, %d, %d)", target, attachment, textarget, texture, level) LOG_D("glFramebufferTexture2D(0x%x, 0x%x, 0x%x, %d, %d)", target, attachment, textarget, texture, level)
if (bound_framebuffer && bound_framebuffer->attachment) { if (bound_framebuffer && attachment - GL_COLOR_ATTACHMENT0 <= getMaxDrawBuffers()) {
bound_framebuffer->attachment[attachment - GL_COLOR_ATTACHMENT0].textarget = textarget; struct attachment_t* attach;
bound_framebuffer->attachment[attachment - GL_COLOR_ATTACHMENT0].texture = texture; if (target == GL_DRAW_FRAMEBUFFER)
bound_framebuffer->attachment[attachment - GL_COLOR_ATTACHMENT0].level = level; attach = bound_framebuffer->draw_attachment;
else
attach = bound_framebuffer->read_attachment;
if (attach) {
attach[attachment - GL_COLOR_ATTACHMENT0].textarget = textarget;
attach[attachment - GL_COLOR_ATTACHMENT0].texture = texture;
attach[attachment - GL_COLOR_ATTACHMENT0].level = level;
}
bound_framebuffer->current_target = target;
} }
LOAD_GLES(glFramebufferTexture2D, void, GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level) LOAD_GLES(glFramebufferTexture2D, void, GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level)

5
app/src/main/cpp/gl/framebuffer.h
View File

@ -14,8 +14,9 @@ struct attachment_t {
}; };
struct framebuffer_t { struct framebuffer_t {
GLenum target; GLenum current_target;
struct attachment_t* attachment; struct attachment_t* draw_attachment;
struct attachment_t* read_attachment;
}; };
extern struct framebuffer_t* bound_framebuffer; extern struct framebuffer_t* bound_framebuffer;