aboutsummaryrefslogtreecommitdiffstats
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/gwin/gwin_gl3d.c171
-rw-r--r--src/gwin/gwin_gl3d.h70
-rw-r--r--src/gwin/sys_defs.h5
-rw-r--r--src/gwin/sys_make.mk4
-rw-r--r--src/gwin/sys_options.h7
5 files changed, 254 insertions, 3 deletions
diff --git a/src/gwin/gwin_gl3d.c b/src/gwin/gwin_gl3d.c
new file mode 100644
index 00000000..e04875c0
--- /dev/null
+++ b/src/gwin/gwin_gl3d.c
@@ -0,0 +1,171 @@
+/*
+ * This file is subject to the terms of the GFX License. If a copy of
+ * the license was not distributed with this file, you can obtain one at:
+ *
+ * http://ugfx.org/license.html
+ */
+
+/**
+ * @file src/gwin/gwin_gl3d.c
+ * @brief GWIN sub-system button code
+ */
+
+#include "gfx.h"
+
+#if GFX_USE_GWIN && GWIN_NEED_GL3D
+
+#if GDISP_PIXELFORMAT != GDISP_PIXELFORMAT_RGB565
+ #error "GWIN: GL3D only support GDISP_PIXELFORMAT_RGB565 color format (TinyGL limitation)"
+#endif
+
+#include "src/gwin/class_gwin.h"
+
+#include "3rdparty/tinygl-0.4-ugfx/src/zgl.h"
+
+// Forward definitions
+static void gl3dDestroy(GWindowObject *gh);
+static void gl3dRedraw(GWindowObject *gh);
+static int gl3dResizeGLViewport(GLContext *c, int *xsize_ptr, int *ysize_ptr);
+
+static const gwinVMT gl3dVMT = {
+ "GL3D", // The classname
+ sizeof(GGL3DObject), // The object size
+ gl3dDestroy, // The destroy routine
+ gl3dRedraw, // The redraw routine
+ 0, // The after-clear routine
+};
+
+static bool_t haveGLwindow = FALSE;
+
+GHandle gwinGGL3DCreate(GDisplay *g, GGL3DObject *gl, const GWindowInit *pInit) {
+ ZBuffer * zb;
+ GLContext * glcxt;
+
+ // Only one GL3D window allowed at a time (TinyGL limitation)
+ if (haveGLwindow)
+ return 0;
+
+ if (!(gl = (GGL3DObject *)_gwindowCreate(g, &gl->g, pInit, &gl3dVMT, 0)))
+ return 0;
+
+ // Must be a multiple of 4 bytes
+ gl->g.width &= ~3;
+ gl->g.height &= ~3;
+
+ zb = ZB_open(gl->g.width, gl->g.height, ZB_MODE_5R6G5B, 0, NULL, NULL, NULL);
+ if (!zb) {
+ if ((gl->g.flags & GWIN_FLG_DYNAMIC))
+ gfxFree(gl);
+ return 0;
+ }
+
+ /* initialisation of the TinyGL interpreter */
+ glInit(zb);
+ gl->glcxt = glcxt = gl_get_context();
+ glcxt->opaque = gl;
+ glcxt->gl_resize_viewport = gl3dResizeGLViewport;
+
+ /* set the viewport : we force a call to the viewport resize routine */
+ glcxt->viewport.xsize=-1;
+ glcxt->viewport.ysize=-1;
+
+ glViewport(0, 0, gl->g.width, gl->g.height);
+
+ haveGLwindow = TRUE;
+ gwinSetVisible((GHandle)gl, pInit->show);
+ return (GHandle)gl;
+}
+
+static void gl3dDestroy(GWindowObject *gh) {
+ (void) gh;
+ glClose();
+ haveGLwindow = FALSE;
+}
+
+static void gl3dRedraw(GWindowObject *gh) {
+ ZBuffer * zb;
+
+ zb = ((GGL3DObject *)gh)->glcxt->zb;
+ gdispGBlitArea(gh->display, gh->x, gh->y, zb->xsize, zb->ysize, 0, 0, zb->linesize/sizeof(color_t), (const pixel_t *)zb->pbuf);
+}
+
+static int gl3dResizeGLViewport(GLContext *c, int *xsize_ptr, int *ysize_ptr) {
+ int cx, cy;
+
+ cx = *xsize_ptr;
+ cy = *ysize_ptr;
+
+ // We ensure that cx and cy are multiples of 4 for the zbuffer. TODO: find a better solution
+ cx &= ~3;
+ cy &= ~3;
+
+ if (cx <= 0 || cy <= 0)
+ return -1;
+
+ *xsize_ptr = cx;
+ *ysize_ptr = cy;
+
+ // Resize the GWIN???
+
+ // Resize the Z buffer
+ ZB_resize(c->zb, NULL, cx, cy);
+ return 0;
+}
+
+/**
+ * TinyGL support routines
+ */
+
+#include <string.h>
+
+#define NO_CLIBRARY
+
+void tgl_warning(const char *format, ...) { (void)format; }
+void tgl_trace(const char *format, ...) { (void)format; }
+void tgl_fixme(const char *format, ...) { (void)format; }
+void gl_fatal_error(char *format, ...) { gfxHalt(format); }
+void gl_assert(int test) { if (!test) gfxHalt("TinyGL Assert"); }
+
+void gl_free(void *p) { gfxFree(p); }
+void *gl_malloc(int size) { return gfxAlloc(size); }
+
+void *gl_zalloc(int size) {
+ void *p;
+
+ p = gfxAlloc(size);
+ if (p)
+ memset(p, 0, size);
+ return p;
+}
+
+
+/**
+ * Pre-load TinyGL headers
+ */
+
+/**
+ * TinyGL wrapper code
+ */
+
+#include "3rdparty/tinygl-0.4-ugfx/src/api.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/list.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/vertex.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/init.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/matrix.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/texture.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/misc.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/clear.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/light.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/clip.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/select.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/get.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/zbuffer.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/zline.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/zdither.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/ztriangle.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/zmath.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/image_util.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/arrays.c"
+#include "3rdparty/tinygl-0.4-ugfx/src/specbuf.c"
+
+#endif /* GFX_USE_GWIN && GWIN_NEED_GL3D */
diff --git a/src/gwin/gwin_gl3d.h b/src/gwin/gwin_gl3d.h
new file mode 100644
index 00000000..ca3edf6f
--- /dev/null
+++ b/src/gwin/gwin_gl3d.h
@@ -0,0 +1,70 @@
+/*
+ * This file is subject to the terms of the GFX License. If a copy of
+ * the license was not distributed with this file, you can obtain one at:
+ *
+ * http://ugfx.org/license.html
+ */
+
+/**
+ * @file src/gwin/gwin_gl3d.h
+ * @brief GWIN 3D module header file
+ *
+ * @defgroup 3D 3D
+ * @ingroup Windows
+ *
+ * @details 3D GWIN window based on OpenGL (or more exactly Tiny GL)
+ * @pre GFX_USE_GWIN must be set to TRUE in your gfxconf.h
+ * @pre GWIN_NEED_GL3D must be set to TRUE in your gfxconf.h
+ *
+ * @{
+ */
+
+#ifndef _GWIN_GL3D_H
+#define _GWIN_GL3D_H
+
+/* This file is included within "gwin/gwin.h" */
+
+
+// A gl3d window
+typedef struct GGL3DObject {
+ GWindowObject g;
+ struct GLContext * glcxt;
+ } GGL3DObject;
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Create a gl3d window.
+ * @return NULL if there is no resultant drawing area, otherwise a window handle.
+ *
+ * @param[in] g The GDisplay to display this window on
+ * @param[in] gg The GGL3DObject structure to initialise. If this is NULL the structure is dynamically allocated.
+ * @param[in] pInit The initialization parameters to use
+ *
+ * @note The drawing color and the background color get set to the current defaults. If you haven't called
+ * @p gwinSetDefaultColor() or @p gwinSetDefaultBgColor() then these are White and Black respectively.
+ * @note The font gets set to the current default font. If you haven't called @p gwinSetDefaultFont() then there
+ * is no default font and text drawing operations will no nothing.
+ * @note The dimensions and position may be changed to fit on the real screen.
+ *
+ * @api
+ */
+GHandle gwinGGL3DCreate(GDisplay *g, GGL3DObject *gg, const GWindowInit *pInit);
+#define gwinGL3DCreate(gg, pInit) gwinGGL3DCreate(GDISP, gg, pInit)
+
+/* Include the gl interface */
+#include "3rdparty/tinygl-0.4-ugfx/include/GL/gl.h"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _GWIN_GL3D_H */
+/** @} */
+
diff --git a/src/gwin/sys_defs.h b/src/gwin/sys_defs.h
index 4b103d11..7823eafe 100644
--- a/src/gwin/sys_defs.h
+++ b/src/gwin/sys_defs.h
@@ -962,14 +962,15 @@ extern "C" {
#if GWIN_NEED_CONSOLE || defined(__DOXYGEN__)
#include "src/gwin/console.h"
#endif
-
#if GWIN_NEED_GRAPH || defined(__DOXYGEN__)
#include "src/gwin/graph.h"
#endif
-
#if GWIN_NEED_IMAGE || defined(__DOXYGEN__)
#include "src/gwin/gimage.h"
#endif
+ #if GWIN_NEED_GL3D || defined(__DOXYGEN__)
+ #include "src/gwin/gwin_gl3d.h"
+ #endif
#endif /* GFX_USE_GWIN */
diff --git a/src/gwin/sys_make.mk b/src/gwin/sys_make.mk
index 95a2ba84..f905f8d3 100644
--- a/src/gwin/sys_make.mk
+++ b/src/gwin/sys_make.mk
@@ -13,4 +13,6 @@ GFXSRC += $(GFXLIB)/src/gwin/gwin.c \
$(GFXLIB)/src/gwin/progressbar.c \
$(GFXLIB)/src/gwin/gcontainer.c \
$(GFXLIB)/src/gwin/frame.c \
-
+ $(GFXLIB)/src/gwin/gwin_gl3d.c \
+
+GFXINC += $(GFXLIB)/3rdparty/tinygl-0.4-ugfx/include
diff --git a/src/gwin/sys_options.h b/src/gwin/sys_options.h
index d5240556..199cad5b 100644
--- a/src/gwin/sys_options.h
+++ b/src/gwin/sys_options.h
@@ -73,6 +73,13 @@
#define GWIN_NEED_GRAPH FALSE
#endif
/**
+ * @brief Should gl3d functions be included.
+ * @details Defaults to FALSE
+ */
+ #ifndef GWIN_NEED_GL3D
+ #define GWIN_NEED_GL3D FALSE
+ #endif
+ /**
* @brief Should button functions be included.
* @details Defaults to FALSE
*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 01:48:18 +0000