#include <xf86drm.h>
+#include "libdrm.h"
#include "exynos_drm.h"
#include "fimg2d_reg.h"
#include "fimg2d.h"
#define MIN(a, b) ((a) < (b) ? (a) : (b))
+enum g2d_base_addr_reg {
+ g2d_dst = 0,
+ g2d_src
+};
+
+static unsigned int g2d_get_scaling(unsigned int src, unsigned int dst)
+{
+ /*
+ * The G2D hw scaling factor is a normalized inverse of the scaling factor.
+ * For example: When source width is 100 and destination width is 200
+ * (scaling of 2x), then the hw factor is NC * 100 / 200.
+ * The normalization factor (NC) is 2^16 = 0x10000.
+ */
+
+ return ((src << 16) / dst);
+}
+
static unsigned int g2d_get_blend_op(enum e_g2d_op op)
{
union g2d_blend_func_val val;
}
/*
+ * g2d_add_base_addr - helper function to set dst/src base address register.
+ *
+ * @ctx: a pointer to g2d_context structure.
+ * @img: a pointer to the dst/src g2d_image structure.
+ * @reg: the register that should be set.
+ */
+static void g2d_add_base_addr(struct g2d_context *ctx, struct g2d_image *img,
+ enum g2d_base_addr_reg reg)
+{
+ const unsigned long cmd = (reg == g2d_dst) ?
+ DST_BASE_ADDR_REG : SRC_BASE_ADDR_REG;
+
+ if (img->buf_type == G2D_IMGBUF_USERPTR)
+ g2d_add_cmd(ctx, cmd | G2D_BUF_USERPTR,
+ (unsigned long)&img->user_ptr[0]);
+ else
+ g2d_add_cmd(ctx, cmd, img->bo[0]);
+}
+
+/*
* g2d_reset - reset fimg2d hardware.
*
* @ctx: a pointer to g2d_context structure.
}
/*
- * g2d_flush - summit all commands and values in user side command buffer
+ * g2d_flush - submit all commands and values in user side command buffer
* to command queue aware of fimg2d dma.
*
* @ctx: a pointer to g2d_context structure.
*
* This function should be called after all commands and values to user
- * side command buffer is set to summit that buffer to kernel side driver.
+ * side command buffer are set. It submits that buffer to the kernel side driver.
*/
static int g2d_flush(struct g2d_context *ctx)
{
/**
* g2d_init - create a new g2d context and get hardware version.
*
- * fd: a file descriptor to drm device driver opened.
+ * fd: a file descriptor to an opened drm device.
*/
-struct g2d_context *g2d_init(int fd)
+drm_public struct g2d_context *g2d_init(int fd)
{
struct drm_exynos_g2d_get_ver ver;
struct g2d_context *ctx;
return ctx;
}
-void g2d_fini(struct g2d_context *ctx)
+drm_public void g2d_fini(struct g2d_context *ctx)
{
if (ctx)
free(ctx);
*
* @ctx: a pointer to g2d_context structure.
*/
-int g2d_exec(struct g2d_context *ctx)
+drm_public int g2d_exec(struct g2d_context *ctx)
{
struct drm_exynos_g2d_exec exec;
int ret;
* @w: width value to buffer filled with given color data.
* @h: height value to buffer filled with given color data.
*/
-int g2d_solid_fill(struct g2d_context *ctx, struct g2d_image *img,
+drm_public int
+g2d_solid_fill(struct g2d_context *ctx, struct g2d_image *img,
unsigned int x, unsigned int y, unsigned int w,
unsigned int h)
{
g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
g2d_add_cmd(ctx, DST_COLOR_MODE_REG, img->color_mode);
-
- if (img->buf_type == G2D_IMGBUF_USERPTR)
- g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
- (unsigned long)&img->user_ptr[0]);
- else
- g2d_add_cmd(ctx, DST_BASE_ADDR_REG, img->bo[0]);
-
+ g2d_add_base_addr(ctx, img, g2d_dst);
g2d_add_cmd(ctx, DST_STRIDE_REG, img->stride);
if (x + w > img->width)
* @w: width value to source and destination buffers.
* @h: height value to source and destination buffers.
*/
-int g2d_copy(struct g2d_context *ctx, struct g2d_image *src,
+drm_public int
+g2d_copy(struct g2d_context *ctx, struct g2d_image *src,
struct g2d_image *dst, unsigned int src_x, unsigned int src_y,
unsigned int dst_x, unsigned dst_y, unsigned int w,
unsigned int h)
g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
- if (dst->buf_type == G2D_IMGBUF_USERPTR)
- g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
- (unsigned long)&dst->user_ptr[0]);
- else
- g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
-
+ g2d_add_base_addr(ctx, dst, g2d_dst);
g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
g2d_add_cmd(ctx, SRC_SELECT_REG, G2D_SELECT_MODE_NORMAL);
g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
- if (src->buf_type == G2D_IMGBUF_USERPTR)
- g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
- (unsigned long)&src->user_ptr[0]);
- else
- g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
-
+ g2d_add_base_addr(ctx, src, g2d_src);
g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
src_w = w;
* @negative: indicate that it uses color negative to source and
* destination buffers.
*/
-int g2d_copy_with_scale(struct g2d_context *ctx, struct g2d_image *src,
+drm_public int
+g2d_copy_with_scale(struct g2d_context *ctx, struct g2d_image *src,
struct g2d_image *dst, unsigned int src_x,
unsigned int src_y, unsigned int src_w,
unsigned int src_h, unsigned int dst_x,
union g2d_rop4_val rop4;
union g2d_point_val pt;
unsigned int scale;
- double scale_x = 0.0f, scale_y = 0.0f;
+ unsigned int scale_x, scale_y;
g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
- if (dst->buf_type == G2D_IMGBUF_USERPTR)
- g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
- (unsigned long)&dst->user_ptr[0]);
- else
- g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
-
+ g2d_add_base_addr(ctx, dst, g2d_dst);
g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
g2d_add_cmd(ctx, SRC_SELECT_REG, G2D_SELECT_MODE_NORMAL);
g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
- if (src->buf_type == G2D_IMGBUF_USERPTR)
- g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
- (unsigned long)&src->user_ptr[0]);
- else
- g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
-
+ g2d_add_base_addr(ctx, src, g2d_src);
g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
if (src_w == dst_w && src_h == dst_h)
scale = 0;
else {
scale = 1;
- scale_x = (double)src_w / (double)dst_w;
- scale_y = (double)src_w / (double)dst_h;
+ scale_x = g2d_get_scaling(src_w, dst_w);
+ scale_y = g2d_get_scaling(src_h, dst_h);
}
if (src_x + src_w > src->width)
if (scale) {
g2d_add_cmd(ctx, SRC_SCALE_CTRL_REG, G2D_SCALE_MODE_BILINEAR);
- g2d_add_cmd(ctx, SRC_XSCALE_REG, G2D_DOUBLE_TO_FIXED(scale_x));
- g2d_add_cmd(ctx, SRC_YSCALE_REG, G2D_DOUBLE_TO_FIXED(scale_y));
+ g2d_add_cmd(ctx, SRC_XSCALE_REG, scale_x);
+ g2d_add_cmd(ctx, SRC_YSCALE_REG, scale_y);
}
pt.val = 0;
}
/**
- * g2d_blend - blend image data in source and destion buffers
+ * g2d_blend - blend image data in source and destination buffers.
*
* @ctx: a pointer to g2d_context structure.
* @src: a pointer to g2d_image structure including image and buffer
* @h: height value to source and destination buffer.
* @op: blend operation type.
*/
-int g2d_blend(struct g2d_context *ctx, struct g2d_image *src,
+drm_public int
+g2d_blend(struct g2d_context *ctx, struct g2d_image *src,
struct g2d_image *dst, unsigned int src_x,
unsigned int src_y, unsigned int dst_x, unsigned int dst_y,
unsigned int w, unsigned int h, enum e_g2d_op op)
g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
- if (dst->buf_type == G2D_IMGBUF_USERPTR)
- g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
- (unsigned long)&dst->user_ptr[0]);
- else
- g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
-
+ g2d_add_base_addr(ctx, dst, g2d_dst);
g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
g2d_add_cmd(ctx, SRC_SELECT_REG, src->select_mode);
switch (src->select_mode) {
case G2D_SELECT_MODE_NORMAL:
- if (src->buf_type == G2D_IMGBUF_USERPTR)
- g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
- (unsigned long)&src->user_ptr[0]);
- else
- g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
-
+ g2d_add_base_addr(ctx, src, g2d_src);
g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
break;
case G2D_SELECT_MODE_FGCOLOR:
projects / platform / upstream / libdrm.git / blobdiff