X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fdbg_gui.cc;fp=src%2Fdbg_gui.cc;h=c0c798423d02897923a0c5a15eaf4573f0da561b;hb=d29eba477666f0753170d9ad549a4715ce071d04;hp=0000000000000000000000000000000000000000;hpb=8512530474f0e0827447b6c81302120592f0e297;p=laserbrain_demo

diff --git a/src/dbg_gui.cc b/src/dbg_gui.cc
new file mode 100644
index 0000000..c0c7984
--- /dev/null
+++ b/src/dbg_gui.cc
@@ -0,0 +1,141 @@
+#include "dbg_gui.h"
+#include "imgui/imgui.h"
+#include "app.h"
+#include "image.h"
+#include "texture.h"
+
+static void render_func(ImDrawData *ddat);
+
+static ImGuiIO *io;
+static Texture *tex;
+
+bool init_debug_gui()
+{
+	io = ImGui::GetIOPtr();
+	io->DisplaySize.x = win_width;
+	io->DisplaySize.y = win_height;
+	io->RenderDrawListsFn = render_func;
+
+	unsigned char *pixels;
+	int width, height;
+	io->Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
+
+	Image img;
+	img.set_pixels(width, height, pixels, Image::FMT_RGBA);
+
+	tex = new Texture;
+	tex->set_image(img);
+	io->Fonts->TexID = (void*)tex;
+
+	return true;
+}
+
+void cleanup_debug_gui()
+{
+	delete tex;
+	tex = 0;
+}
+
+void debug_gui_reshape(int x, int y)
+{
+	io->DisplaySize.x = x;
+	io->DisplaySize.y = y;
+}
+
+bool debug_gui_key(int key, bool press, unsigned int modstate)
+{
+	io->KeysDown[key] = press;
+	io->KeyShift = (modstate & MOD_SHIFT) != 0;
+	io->KeyCtrl = (modstate & MOD_CTRL) != 0;
+	io->KeyAlt = (modstate & MOD_ALT) != 0;
+	io->KeySuper = false;
+
+	return true;	// TODO
+}
+
+bool debug_gui_mbutton(int bn, bool press, int x, int y)
+{
+	io->MouseDown[bn] = press;
+	io->MousePos.x = x;
+	io->MousePos.y = y;
+
+	return true;	// TODO
+}
+
+bool debug_gui_mmotion(int x, int y)
+{
+	io->MousePos.x = x;
+	io->MousePos.y = y;
+
+	return true;	// TODO
+}
+
+static void render_func(ImDrawData *ddat)
+{
+	glViewport(0, 0, win_width, win_height);
+
+	glPushAttrib(GL_ENABLE_BIT);
+	glEnable(GL_BLEND);
+	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+	glDisable(GL_CULL_FACE);
+	glDisable(GL_DEPTH_TEST);
+	glDisable(GL_LIGHTING);
+	glEnable(GL_SCISSOR_TEST);
+	glEnable(GL_TEXTURE_2D);
+	glUseProgram(0);
+
+	glMatrixMode(GL_PROJECTION);
+	glPushMatrix();
+	glLoadIdentity();
+	glOrtho(0, win_width, win_height, 0.0, -1, 1);
+
+	glMatrixMode(GL_MODELVIEW);
+	glPushMatrix();
+	glLoadIdentity();
+
+	for(int i=0; i<ddat->CmdListsCount; i++) {
+		ImDrawList *cmdlist = ddat->CmdLists[i];
+		ImDrawVert *vbuf = cmdlist->VtxBuffer.Data;
+		ImDrawIdx *ibuf = cmdlist->IdxBuffer.Data;
+
+		for(int j=0; j<cmdlist->CmdBuffer.Size; j++) {
+			ImDrawCmd *cmd = &cmdlist->CmdBuffer[j];
+			if(cmd->UserCallback) {
+				cmd->UserCallback(cmdlist, cmd);
+			} else {
+
+				bind_texture((Texture*)cmd->TextureId);
+
+				glScissor(cmd->ClipRect.x, win_height - cmd->ClipRect.w,
+						cmd->ClipRect.z - cmd->ClipRect.x, cmd->ClipRect.w - cmd->ClipRect.y);
+
+				glBindBuffer(GL_ARRAY_BUFFER, 0);
+				glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+
+				glEnableClientState(GL_VERTEX_ARRAY);
+				glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+				glEnableClientState(GL_COLOR_ARRAY);
+
+				glVertexPointer(2, GL_FLOAT, sizeof *vbuf, &vbuf[0].pos);
+				glTexCoordPointer(2, GL_FLOAT, sizeof *vbuf, &vbuf[0].uv);
+				glColorPointer(4, GL_UNSIGNED_BYTE, sizeof *vbuf, &vbuf[0].col);
+
+				glDrawElements(GL_TRIANGLES, cmd->ElemCount, GL_UNSIGNED_SHORT, ibuf);
+
+				glDisableClientState(GL_VERTEX_ARRAY);
+				glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+				glDisableClientState(GL_COLOR_ARRAY);
+			}
+			ibuf += cmd->ElemCount;
+		}
+	}
+
+	glMatrixMode(GL_PROJECTION);
+	glPopMatrix();
+
+	glMatrixMode(GL_MODELVIEW);
+	glPopMatrix();
+
+	glPopAttrib();
+}
+