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nanovega: don't reset FBO (so user can set FBO before rendering, and NanoVega will use it)

This commit is contained in:
Ketmar Dark 2018-03-26 12:13:23 +03:00 committed by Adam D. Ruppe
parent a34e7a5d74
commit 26da315d06
1 changed files with 19 additions and 10 deletions
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29
nanovega.d
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@ -12121,6 +12121,8 @@ private extern(System) nothrow @nogc {
enum uint GL_COPY = 0x1503U;
enum uint GL_XOR = 0x1506U;
enum uint GL_FRAMEBUFFER_BINDING = 0x8CA6U;
/*
version(Windows) {
private void* kglLoad (const(char)* name) {
@ -12226,6 +12228,9 @@ private extern(System) nothrow @nogc {
alias glbfn_glBindFramebuffer = void function (GLenum target, GLuint framebuffer);
__gshared glbfn_glBindFramebuffer glBindFramebuffer_NVGLZ; alias glBindFramebuffer = glBindFramebuffer_NVGLZ;
alias glbfn_glGetIntegerv = void function (GLenum pname, GLint* data);
__gshared glbfn_glGetIntegerv glGetIntegerv_NVGLZ; alias glGetIntegerv = glGetIntegerv_NVGLZ;
private void nanovgInitOpenGL () {
__gshared bool initialized = false;
if (initialized) return;
@ -12315,6 +12320,9 @@ private extern(System) nothrow @nogc {
glBindFramebuffer_NVGLZ = cast(glbfn_glBindFramebuffer)glbindGetProcAddress(`glBindFramebuffer`);
if (glBindFramebuffer_NVGLZ is null) assert(0, `OpenGL function 'glBindFramebuffer' not found!`);
glGetIntegerv_NVGLZ = cast(glbfn_glGetIntegerv)glbindGetProcAddress(`glGetIntegerv`);
if (glGetIntegerv_NVGLZ is null) assert(0, `OpenGL function 'glGetIntegerv' not found!`);
initialized = true;
}
}
@ -12502,6 +12510,7 @@ struct GLNVGcontext {
bool inFrame; // will be `true` if we can perform OpenGL operations (used in texture deletion)
shared bool mustCleanTextures; // will be `true` if we should delete some textures
ThreadID mainTID;
uint mainFBO;
// Per frame buffers
GLNVGcall* calls;
@ -12899,13 +12908,6 @@ void glnvg__copyFBOToFrom (GLNVGcontext* gl, int didx, int sidx) nothrow @truste
assert(gl.fbo.ptr[sidx] != 0);
if (didx == sidx) return;
/*
glBindFramebuffer(GL_FRAMEBUFFER, gl.fbo.ptr[didx]);
glClearColor(0, 0, 0, 0);
glClear(GL_COLOR_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
return;
*/
version(nanovega_debug_clipping) if (nanovegaClipDebugDump) { import core.stdc.stdio; printf("FBO(%d): copy FBO: %d -> %d\n", gl.msp-1, sidx, didx); }
glUseProgram(gl.shaderCopyFBO.prog);
@ -12990,8 +12992,6 @@ void glnvg__setFBOClipTexture (GLNVGcontext* gl, GLNVGfragUniforms* frag) nothro
// returns index in `gl.fbo`, or -1 for "don't mask"
int glnvg__generateFBOClipTexture (GLNVGcontext* gl) nothrow @trusted @nogc {
assert(gl.msp > 0 && gl.msp <= gl.maskStack.length);
// reset cache
//glnvg__resetFBOClipTextureCache(gl);
// we need initialized FBO, even for "don't mask" case
// for this, look back in stack, and either copy initialized FBO,
// or stop at first uninitialized one, and clear it
@ -13517,7 +13517,7 @@ void glnvg__finishClip (GLNVGcontext* gl, NVGClipMode clipmode) nothrow @trusted
//glnvg__restoreAffine(gl);
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glBindFramebuffer(GL_FRAMEBUFFER, gl.mainFBO);
glDisable(GL_COLOR_LOGIC_OP);
//glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); // done above
glEnable(GL_BLEND);
@ -13882,6 +13882,15 @@ void glnvg__renderFlush (void* uptr) nothrow @trusted @nogc {
if (gl.mainTID != Thread.getThis.id) assert(0, "NanoVega: cannot use context in alien thread");
} catch (Exception e) {}
scope(exit) gl.inFrame = false;
glnvg__resetError!true(gl);
{
int vv = 0;
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &vv);
if (glGetError() || vv < 0) vv = 0;
gl.mainFBO = cast(uint)vv;
}
enum ShaderType { None, Fill, Clip }
auto lastShader = ShaderType.None;
if (gl.ncalls > 0) {